Horse racing tipsters, priced honestly

Updated October 2026
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*Betting winnings in Great Britain are untaxed for the punter. General Betting Duty is the operator’s levy, currently 15 %, with a 25 % remote rate applying from 1 April 2027. None of it lands on the stake or the return.*

“Tipster” is a word punters use for somebody whose opinion they bet on. The opinion can be free or paid, a full-time professional or a mate down the pub, and it can be presented as a horse name, a price, a staking plan or all three. What every tipster has in common is that the betting slip is yours and the outcome is unknown. This guide walks through how a tip is supposed to be built, how the bookmaker’s own margin eats into it, which rules decide whether a brand is even allowed to take your money in Great Britain, and where the responsible-gambling tools sit. The trade costs real money on every bet, so the analysis leans on the cost: the stake, the place terms on an each-way bet, the headline bonus and what it takes to clear.

Flat races range from 440 yards (400 m) to more than four miles (6.4 km), with five to twelve furlongs (1.0 to 2.4 km) the most common distances.

The figures below are current as of October 30, 2026 and were checked against the Gambling Commission’s public register of operating licences and each operator’s own published terms.

The fundamentals a tipster’s price rests on

A tip worth following is a price, not a name. The name is which horse the tipster fancies; the price is whether the bookmaker is offering more than the true chance of the horse winning. Behind that gap sits a small, repeatable set of fundamentals that any tipster has to weigh, however they package the result.

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The British Triple Crown consists of the 2000 Guineas, the Derby and the St Leger.

Distance, going and class

Flat races in Britain range from about five furlongs (just over a kilometre) up to two and a half miles, with the bulk of the programme sitting between five and twelve furlongs. Jump racing runs further and over obstacles. A horse suited to a mile on good ground at a small track is not the same horse on soft ground over two and a half miles at a staying track. The class of the race — listed, Group, handicap, seller, maiden, novice, conditions — frames the field too. A tipster who ignores class and going is leaning on form alone, and form read in isolation is a thin kind of form.

Form, breeding and the trainer’s pattern

Form is the past results, ideally read against today’s going and trip. Breeding is a longer clock: a young horse by a stamina sire out of a sprint mare is being asked to do something against its type, and the sire’s record in similar conditions is one of the older forecasting tools in the book. Trainer patterns are shorter-term — a yard that goes to a particular track with first-time blinkers and a long rest, a yard that improves horses for their first run after a break — and a tipster who tracks them picks up signals the public form figures do not contain.

Pace map and draw bias

A pace map is which horses want to go on, sit and come late, and whether the race has enough pace to produce a true-run contest. A slowly run race helps hold-up horses, a fractured pace helps front-runners, and a steady gallop helps milers who travel on the bridle. Draw bias is track-specific: some courses, particularly sharp left-handers and tight circuits, give a stall advantage that the public form book does not always adjust for. Both are the kind of variable a serious tipster handles without naming it, and the kind a careless one leaves on the table.

The British classics — the 2000 Guineas, the Derby and the St Leger — sit on top of this. They are the races that define a season and the prices that get formed earliest, often before a horse has run three times, and a tipster staking real money on a Guineas favourite in March is staking against a much wider uncertainty than the public market has priced.

What the bookmaker’s margin does to a tip

Every decimal price a punter sees is dressed around the bookmaker’s margin, also called the overround. A two-way market priced at 1.90 against 1.90 is the textbook example: each side, by the math, implies a 52.63 % chance, and the two chances added together come to 105.26 %. Those extra 5.26 percentage points are the margin — the slice of every pound staked that the bookmaker takes on that market regardless of the result.

A tipster who picks a horse priced at 1.90 has, on the bookmaker’s own framing, picked a horse with a 52.63 % implied chance. The tipster’s job is to argue that the true chance is higher than that — say 60 %. That gap between 60 % and 52.63 % is the value, and value is what a tip is supposed to buy. It is also small, fragile and easy to misjudge. Two horses at 1.90 in a different market may have a margin of 4 % or 8 % depending on how competitive the book is; a tip that looks great at one book can be neutral at another on the same selection the same afternoon.

Run as a number, the 1.90 / 1.90 example produces a payout share of about 95 % to the bettor and a margin of about 5 % for the bookmaker, and that 5 % is the cut from which the book pays for the platform, the staff and the marketing — including the free tips and the price boosts the brand uses to win customers in the first place. It is why a tip that beats the public form does not necessarily beat the bookmaker over a season: the edge the tipster finds has to clear the margin, and the margin is taken on every bet, win or lose.

Reading a margin in the wild is straightforward. Take the implied probabilities, add them up, and subtract from 100 %. A two-way market at 1.91 / 1.91 sums to 104.7 %; a five-horse race at 5.0 / 7.0 / 12.0 / 23.0 / 67.0 sums to much more, because more runners carry more margin. The market the tipster works in has a built-in handicap, and the tip’s job is to clear it.

The landscape: where the money is placed

The horse racing market in Great Britain is split between on-course bookmakers, high-street chains, online sportsbooks and the betting exchanges. The on-course firms price the only market not fully arbitraged by screen traders, set their own place terms for each-race betting and stand behind the rail. The high-street chains have run pool betting on British and Irish racing for over a century and now operate online alongside their shops. The online-only brands are the youngest layer and the most aggressive on price, particularly on Best Odds Guaranteed.

Best Odds Guaranteed — BOG — is a UK and Irish racing promotion that pays the starting price if it is bigger than the price taken at bet-placement. It is offered across most of the major brands, with a typical cap of £150 per customer per race for the brands that publish one. Above that cap, no BOG applies.

Each-way betting is the second quirk that defines the British market. An each-way bet is two bets of equal stake — one on the win, one on the place — so a £5 each-way stake costs £10. The place part pays out at a fraction of the win odds depending on the number of runners. In handicaps with sixteen or more runners that fraction is a quarter of the win odds for the first four places; in smaller fields it can be a quarter for three places down to win-only with fewer than five. A tipster who quotes “each-way value” without saying which place terms apply is quoting a number with one of its footnotes missing.

Take a worked example: a £10 each-way bet at one-quarter place terms for three places on a 10/1 horse costs £20 in total. If the horse wins, the win leg pays £110 (£10 × (10+1)) and the place leg pays £35 (£10 × (10/4+1) = £35), for £145 back. If it only places, the win leg loses and the place leg still pays £35, for a net loss of £15 on the £20 stake. Each-way betting is a way of paying for a fallback, and the fallback is rarely free.

The statute: who is allowed to take the bet

A bookmaker serving customers in Great Britain needs a Gambling Commission licence wherever the company is based. The relevant statute is the Gambling Act 2005, tightened by the Gambling (Licensing and Advertising) Act 2014 so that the licence is required at the point of consumption rather than the point of incorporation. A Curaçao or Malta licence does not substitute. Offshore brands that serve British customers without the GB licence commit an offence aimed at them, not at the punter; the consequence for the customer is that the licence protections described below do not apply.

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An each-way bet is two bets, a win bet and a place bet, so the stake is doubled (a £5 each-way bet costs £10).

The Commission’s public register lists every licensed operator by business name, account number and remote operating licence. Searching the register by domain is the cleanest way to confirm a brand, and the result is the licence number and licensee name printed on the brand’s own terms page. There is no statutory monopoly and no cap on the number of licences. Of the brands reviewed on this page, all ten hold a remote general betting standard (real events) licence against a Commission account; several also hold a pool betting or betting intermediary category.

Identity verification is mandatory at licensed brands before the first deposit or bet, and that includes free bets and bonuses. Name, address and date of birth are checked; a financial vulnerability check using public data fires once a customer’s net deposits cross £150 in a rolling 30-day window. The check is a look at court records and bankruptcy data, not a credit-reference search and not an income audit. Higher-spend customers face source-of-funds questions and may be asked for payslips or bank statements; the rules under which that happens are the anti-money-laundering regime, not a means test of the punter.

Spread betting is a different category altogether: where the contract is financial, the regulator is the Financial Conduct Authority, and losses on a spread bet can exceed the deposit. Treating a spread bet like a fixed-odds wager is one of the costlier mistakes a punter new to either product can make.

The licence in plain English

A Gambling Commission remote licence says three things at once. The operator has passed the Commission’s background, funding and integrity checks. The Commission’s social responsibility code and the Remote Technical Standards apply to that operator’s product. If the customer has a complaint, the operator must signpost an approved alternative dispute-resolution body; on the punter’s side, the Commission’s action is enforced through the licence itself.

The Commission does not license advertising; that runs through the ASA’s CAP Code for non-broadcast and BCAP for broadcast, alongside the Commission’s own marketing conditions. The headline promotional rule, in force since 19 January 2026, is the cap on wagering requirements: bonuses carry no more than ten times the bonus amount of qualifying bets, and mixed-product promotions that bundle two or more gambling products — bet on a football match to get free casino spins, for example — are no longer permitted. Free bets with no wagering condition sit in a separate, less settled category.

Responsible gambling and the rules that protect the punter

GAMSTOP is the national self-exclusion scheme and a condition of every GB-licensed online betting licence since 31 March 2020. A customer who registers with GAMSTOP blocks themselves from every licensed online bookmaker for six months, a year, five years or five years with auto-renewal. After the minimum period the exclusion rolls for a further seven years unless the customer asks GAMSTOP to lift it. The scheme covers online only; the betting shops run a separate over-the-counter register. A customer who wants to gamble on a betting shop must do so in person and cannot open an online account for the duration.

Beyond GAMSTOP, the licensed brands publish their own safer-gambling toolkit: deposit limits on a daily, weekly or monthly frame; product restrictions to lock casino or bingo behind a switch; time-out to pause an account; reality checks during a session; and self-exclusion directly with the operator. Real-money gambling is restricted to customers aged 18 and over, and the licensed brands enforce that with the same identity check used for the rest of the register.

The credit-card ban, in force since 14 April 2020, applies across the GB-licensed market and covers credit-card-funded e-wallet deposits as well as direct credit card payments. Debit cards and bank-based payments are not covered. There is no statutory cap on stakes in sports betting — operators set their own maximums and may restrict individual customers — and the gross deposit limit introduced under RTS 12 applies in stages, with the first phase live since 31 October 2025 and a second phase postponed to 30 September 2026.

Help for a punter who is losing the run of things is free, confidential and outside the brands themselves. GamCare runs the National Gambling Helpline. GambleAware funds treatment and education. The NHS runs gambling clinics in several regions. Gamblers Anonymous runs meetings. None of these charge, none of them appear on the betting slip, and the contact details are on the licence holder’s own safer-gambling page.

The same tools cost the operator nothing financially; the change in protection that came in over the last decade was driven by statute and the LCCP, not by what the market chose to do on its own. That is the practical content of a GB licence.

Live betting and cash out during a race

Live betting on racing has been available for years through phone and on-course channels, but the in-running product on smartphones and on the exchanges is a younger layer. A bookmaker who has the prices on every horse throughout the race — laying the leader, shortening the back of a horse that has gone clear — is taking the punt on something a tipster could not have known at the off. The smarter in-running books price off a combination of video, the live tick and the betting exchange; the worse ones quote with a margin that leaves the value of any tip squarely in the hands of the trader on the desk.

Cash out is the operator’s offer to settle the bet before the final result. The price the operator offers is its own book at that moment, with its own margin and a bias in its favour. A punter who uses cash out on a winning position is locking in less than the eventual return on most occasions; a punter who uses it on a losing position is buying back less than they would need to lay the same selection on the exchange. Cash out is useful when the punter wants certainty, not when they want value, and a tipster who tells followers to “cash out early” without naming the scenario is asking them to pay the operator’s margin twice.

The ante-post market is the other corner of British racing that fits awkwardly with live products. An ante-post bet is placed days or weeks ahead of a race, with no place terms and no money returned if the horse does not run. The published market is wider than the on-day market and the margin is fatter; the price advantage that some tipsters quote as “value” is partly the ante-post margin, not the form of the horse.

Predictions and strategy without the wizardry

A prediction is an opinion expressed as a name and a price. Strategy is what the punter does with one. Three rules carry most of the weight.

Bankroll and staking

A bankroll is the amount set aside for betting. The commonest staking plans are level stakes (the same amount on every bet), percentage staking (a fixed percentage of the current bankroll), and Kelly staking (a percentage scaled by the edge the tipster thinks they have). All three break if the bankroll is too small for the stakes chosen, because variance on a small sample can wipe out months of form. The only plan a tip can rescue is a bankroll that survives losing runs, and a 100-point bank as a working target is the floor a casual punter should aim for.

A tipster who publishes returns without publishing the staking plan is publishing a number that the punter cannot reproduce. A level-staking 25-point profit looks modest; the same selections at 5 % of bankroll on a doubling losing run can hit zero before they reach the winners. The cost is not the subscription; the cost is the staking plan the punter adopts in response.

Reading the price, not the form

Form says a horse has a chance. Price says whether that chance is worth paying for. A punter who backs every fancied horse regardless of price is a punter paying margin on every bet and learning nothing the bookmaker will not eventually discount. The first habit to copy from a working tipster is the one they make obvious: reject anything that is too short, and accept that the short-priced tipsters lose money over a season against the same form priced up at an exchange.

The second is to keep a record. Spreadsheets are free. A simple sheet — date, race, horse, odds, stake, result, P&L — turns a year of tips into data, and the data tells the punter whether the tipster is ahead or behind. A tipster who refuses to share the full record is a tipster the punter cannot evaluate, and a punt is the punter’s stake.

The honest frame

No tip is certain. A tip that comes with a confident prediction and a long losing streak is the kind of tip a punter who acts on a single selection without a plan is most exposed to. The arithmetic is unforgiving: at 2/1 a horse wins 33 % of the time in the long run, loses 67 %, and the punter who bets on every selection a tipster gives is betting on a stream of 33 % chances. The punter who clears the bookmaker’s margin and the tipster’s subscription over that stream is not the punter who acted on the latest tip alone. Strategy is what turns a stream of uncertain outcomes into something a bankroll can survive. It is not the answer to whether the next horse wins.

The reviewed bookmakers

Ten GB-licensed brands are set out below. Each carries a Gambling Commission account number and licensee, drawn from the public register; the second column notes what each operator’s own terms say about horse racing specifically, since the page’s subject is the sport and the tipster’s market, not the brand as a whole.

Brand Gambling Commission account and licensee What the brand’s own terms say on horse racing
Geoff Banks Remote licence 54095 (GB Sports Advisors Limited) Live in-play prices and ante-post prices on future events
Star Sports Remote licence 9177 (Star Racing Limited) Self-described leading UK independent bookmaker; sportsbook with virtuals and casino
Fitzdares Remote licence 400 (Fitzdares Limited) Cash out, accumulators, Lucky 15s, specials and antepost markets with in-play live odds
Octobet Remote licence 62545 (Octopus Game Limited) Best Odds Guaranteed on UK and Irish racing, up to £150 per customer per race
Midnite Remote licence 101839 (Midnite Limited) In-play events, acca builder, price boosts with maximum-stake limits
Dabble Remote licence 65677 (Dabble Sports UK Ltd) Welcome offer structured as a free-bet pair with stake not returned, seven-day expiry
Fitzwilliam Sports Remote licence 48760 (SBKI Limited) Phone and live chat desk open 09:00–21:00, seven days a week
VBet Remote licence 44662 (SCGO Limited) Bet Builder, in-play, live streaming and a results-and-stats calendar
London Bet Remote licence 66162 (Thistle Bet Limited) Horse racing listed among the sports book, alongside casino and live in-play
Ladbrokes Remote licence 54743 (LC International Limited) Odds boosts on horse and greyhound bets, Best Odds Guaranteed, Acca Boosts, in-play

1. Geoff Banks

Geoff Banks is an independent British bookmaker with a single GB licence against GB Sports Advisors Limited, the same company that publishes the brand’s app. Its stated offer on racing is what the smaller on-course tradition translates to a phone and a screen: live in-play prices and ante-post prices on future events, with the rest of the sportsbook filling out the page. The independent licence holder is a tighter set-up than the multi-brand groups, and the point of contact for any complaint is the same company rather than a parent. For a punter who wants an established independent on a Commission licence with a focused racing product, this is a fit. For a punter chasing exchange liquidity or acca insurance, the package is thin.

2. Star Sports

Star Sports calls itself the UK’s leading independent bookmaker and operates a small chain alongside its online sportsbook, with virtual sports, casino and live casino on top. The racing side sits in a parent (Star Racing Limited) and the licence is a standard remote licence. The appeal is the same independence story as Geoff Banks, plus a stronger casino vertical. The cost is the same thin acca kit. For a punter who likes to mix a bet on the horses with a slot in the same evening, the bundle is useful. It is less targeted at the racing-first specialist.

3. Fitzdares

Fitzdares positions itself in the premium bracket. The betting menu names cash out, accumulators, Lucky 15s, specials and antepost markets with in-play odds across horse racing, football, tennis, rugby, cricket, golf and American football — a longer feature list than most independents. The licence is held by Fitzdares Limited against one of the smaller account numbers in the comparison, which fits the independent lineage. The cost on racing sits in the specials and the antepost prices, where the margin is often fatter than the on-day book and the value rests on the punter catching the right end of it. For a punter who trades antepost and likes the multi-leg combinations, the menu is worth the look; for a casual each-way punter, the sportsbook is more than enough.

4. Octobet

Octobet is a remote licence held by Octopus Game Limited, and the racing headline is Best Odds Guaranteed on UK and Irish horse racing up to £150 per customer per race. That cap is the same ceiling the major chains publish, and the promotion is the kind that pays back above its weight on longshot winners. The rest of the menu is the standard online suite. For a punter who backs horses regularly and wants BOG without taking on a larger brand’s overhead, Octobet is a clean fit. For a punter whose horse racing interest is one Saturday a month, the cap will rarely bite and the operator choice is mostly about other sports.

5. Midnite

Midnite’s licence account number is one of the higher in the comparison, and the racing product is built around the modern online sportsbook pattern: in-play events, an acca builder, popular accas and price boosts with maximum-stake limits. The brand’s welcome offer is a £25 free-bet-and-spins bundle tied to a £5 pre-match qualifying bet at minimum odds of evens (2.0) within fourteen days of sign-up, with the free-bet-and-spins valid for seven days. The cost of a structured welcome offer is exactly what the wagering rules say it is — a 10x cap on the bonus from 19 January 2026 — and the right reading is the seven-day expiry on the free bet, which is tighter than the qualifying window. For a punter who plans to use the brand on day one, the offer frames what the account looks like. For a punter who keeps several books open, it is just one of the structure.

6. Dabble

Dabble’s welcome offer is the simplest shape in the comparison: a £10 first-deposit bet unlocks £10 in free bets, with a seven-day expiry on the free bet and the stake not returned on a free-bet win. The licence account is held by Dabble Sports UK Ltd, and the rest of the menu follows the social-betting pattern of short videos and shared tips alongside the sportsbook. For a punter who likes a low-friction welcome and a casual feed, Dabble is a clean fit; the cost is the staking-plan arithmetic in the seven days after sign-up, where free bets expire unused. For a punter who only settles in one afternoon a month, the welcome is a feature they will not repeat often enough to lean on.

7. Fitzwilliam Sports

Fitzwilliam Sports runs a phone and live-chat desk open 09:00 to 21:00, seven days a week, with messenger replies usually under ninety seconds — the human channel that the all-online brands have thinned out. The licence is held by SBKI Limited, not the same company as the betting brand, which is the kind of licence holder structure the Commission’s register makes plain. The racing menu and the welcome offer are not the headline, which is the phone. For a punter who likes to phone in a bet rather than tap one in, this is the corner of the market that still does the job. It is not designed for the purely digital bettor who prefers a self-service app experience.

8. VBet

VBet’s licence is held by SCGO Limited, and the feature list on the app names Bet Builder, pre-match and in-play betting, live streaming and a results-and-stats calendar. Live streaming is the line the smaller brands draw themselves on: a brand that streams the meetings it prices has a useful edge on a brand that does not, because the streaming and the tick line up on the punter’s phone. The cost is the menu depth — Bet Builder and accumulator insurance both cost margin, both run on a fat book, and both need a punter who actually uses them. For a punter who bets in-running on football as much as on horses, the package is a tidy match. For a racing-only punter, the streaming alone is worth the registration.

9. London Bet

London Bet lists horse racing among its sports alongside football, tennis, greyhounds, darts, golf, cricket, NFL, NBA, MLB and snooker, and adds Pragmatic Play casino slots and live in-play betting. The licence is held by Thistle Bet Limited, which is the kind of licensee name that suggests a single-brand operator. The shape is a small-chain sportsbook-plus-casino without the premium framing of Fitzdares or the social feed of Dabble. For a punter who wants horse racing on one tab and slots on the other, the bundle is straightforward. It offers limited extra depth for those dedicated solely to the racing market.

10. Ladbrokes

Ladbrokes is the household name at the comparison table, and the GB licence is held by LC International Limited against an account number that covers both a remote general betting standard licence and a betting intermediary category — the latter is the exchange-side permit that lets the brand run a betting exchange against the same licence holder. The racing package is the broadest in the comparison: odds boosts on horse and greyhound bets, Best Odds Guaranteed on UK and Irish horse races, in-play betting, Acca Boosts. The cost is everything that the breadth imposes on a casual punter: acca insurance with conditions, odds boosts with maximum-stake limits, BOG capped somewhere around the £150 mark. For a punter who actually uses the breadth — BOG every Saturday, an Acca Boost on the longshot card, an in-running bet on the football — the package is the cheapest cost per bet on the page. For a punter who only backs one winner a month, the breadth is just a longer website.

Cost and verdict

The 1.90 / 1.90 example gives a clear picture of what the punter actually keeps: on a market priced that way, the punter gets about 95 pence back for every pound staked, leaving 5 pence as the bookmaker’s edge. Over a typical session of four or five bets, clearing that edge costs roughly £2.50 for every £50 put on the table. This is before paying for any tip subscription, covering the losses on an each-way place leg that misses, or accounting for the wagering requirements on a free bet. Understanding this arithmetic is the real secret to following tips: a useful tip is one that can clear both the bookmaker’s 5 % margin and the cost of the occasional loss, rather than just picking a single winner.

The brands set out above cover the licensed UK racing market from the premium independent to the household chain. The choice between them is the choice of where the cost lands: BOG and acca boosts at the chains, a phone line at Fitzwilliam, antepost prices at the independents, the streaming-plus-tick at VBet, the social feed at Dabble. A punter who plans around the place terms, the BOG cap, the welcome expiry and the staking plan is the punter whose tip costs them the floor, not the ceiling.

Frequently asked questions

How does someone become a betting tipster?

A tipster is somebody whose opinion the punter bets on. There is no licence for tipsters under the Gambling Act 2005; the Commission’s licensing regime covers the operators who take the bets, not the commentators who call them. Becoming a tipster means publishing tips — on a website, an app, a social feed, a paid subscription or a free mailing list — and being able to show a record of selections, prices and outcomes that the punter can check. A sensible entry point is a free record in a spreadsheet, a staking plan the punter can name, and a year of results before any subscription is charged.

Who is the best betting tipster?

No single tipster is best across markets. Racing, football and cricket tipsters price different things, run different books, and clear different bookmakers’ margins. The right test of any tipster is the full record at the staking plan the punter would actually use, not the headline return over a hot month. A tipster who publishes prices and stakes, who accepts losing runs without cutting the data, and who shows the closing-line value (the gap between the tipster’s price and the on-day SP) is the kind of tipster a punter can evaluate. A tipster who quotes a strike rate without a P&L is a tipster the punter cannot evaluate.

What is a tipster in betting?

A tipster is a person who publishes predictions of sporting outcomes, usually with a price and a staking suggestion. The word covers a wide range: journalists, professional punters, statistical modellers, social-media posters and word-of-mouth mates. What unites the term is the act of giving an opinion other people bet on, and what divides one tipster from another is the cost of following them — a subscription fee, the loss of value to the bookmaker’s margin, and the staking plan the punter adopts in response.

What is a value bet, and why is no tip ever certain?

A value bet is a price that is higher than the true probability implies. A horse whose win chance is 40 % has an implied fair odds of 3.0 (decimal) or 2/1 (fractional). If the bookmaker’s price is 4.0 (3/1) the bet has positive expected value at the punter’s hand — the punter makes the bet over a stream, even though any single bet can lose. Value is small and easy to misjudge; tipsters disagree about it constantly, and the bookmaker’s own margin sits between the punter and the edge. No tip is certain because no tipster can know the future, and the punter who treats a confident tip as a sure thing is the punter whose staking plan breaks on the losing run.

What is the bookmaker’s margin and how does it show in the odds?

The margin is the share of every pound staked that the bookmaker keeps on a market, win or lose. On a two-way market priced at 1.90 against 1.90 the implied probabilities add up to about 105.3 %, and the extra 5.3 percentage points is the margin. The punter can read it from any set of prices: take the implied probability of each outcome, add them up, and subtract from 100 %. A market where the implied probabilities sum to 102 % carries a 2 % margin; one that sums to 110 % carries a 10 % margin. The margin is the cost of being in the market, and a tipster’s edge has to clear it before the punter is ahead.

How is a bet’s return worked out from the stake and the odds?

Return is stake × odds on a winning single bet, with net profit being stake × (odds − 1). For example, a £10 stake at decimal odds of 4.50 returns £45 (£10 × 4.50 = £45), a profit of £35. For a combination bet — a double, treble or accumulator — the odds of each leg are multiplied into one price before the multiplication is done; a treble at 2.0, 3.0 and 4.0 is a single bet at 24.0 in price. An each-way bet is two bets of equal stake, so a £5 each-way stake costs £10, and the place leg pays at a fraction of the win odds determined by the race and the operator’s place terms.

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