Drifters are bets that people generally don't want to back so the bookmakers are offering bigger odds to entice people in. Selections that drift can and do win.
What Is An Odds Comparison Tool?
Drifters are bets that people generally don't want to back so the bookmakers are offering bigger odds to entice people in. Selections that drift can and do win. Sleepers are selections that are much bigger at one bookmaker than the rest. This may be because they simply don't fancy it but is most commonly because the traders have been slow to react to changes in the market. This is a particularly good tool for trading.
Get £30 in free bets when you deposit £10+ & bet £10
The bookmaker with the best odds in general, if not looking to specialise is a specific sport, or market, would be bet365 who day in day out offer great odds on all types of sports, events, and specialised betting markets from their betting website. Yes, bigger odds are better when making bets on an event to happen. If you back something at 2/1 when you could have bet at 3/1 then, it would be a bad decision. This situation is reversed if you are playing the bookmaker, perhaps on a betting exchange, where you want to 'lay' bets at lower odds. There are two options if you are looking for the best odds on horse racing.
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Firstly, using a betting exchange is one way of getting, in general, better odds than using a traditional bookmaker. Betfair SP consistently outperforms the normal industry starting price. The other way of finding the best odds on horse racing is using an odds matrix. On OLBG we researched and discovered the best bookie for horse racing. It is to help bettors make informed decisions by identifying the best available odds for your bet. Sleepers are selections that are much bigger at one bookmaker than the rest. This may be because they simply don't fancy it but is most commonly because the traders have been slow to react to changes in the market. This is a particularly good tool for trading.
| Sportsbook | Football | Basketball | Tennis | Horse Racing |
|---|---|---|---|---|
| Bet365 | 95.2% | 94.8% | 95.5% | 97.1% |
| Pinnacle | 98.3% | 97.9% | 98.1% | N/A |
| Betway | 94.5% | 94.0% | 95.0% | 96.5% |
| Marathonbet | 96.8% | 96.5% | 97.0% | N/A |
The bookmaker with the best odds in general, if not looking to specialise is a specific sport, or market, would be bet365 who day in day out offer great odds on all types of sports, events, and specialised betting markets from their betting website. Yes, bigger odds are better when making bets on an event to happen. If you back something at 2/1 when you could have bet at 3/1 then, it would be a bad decision. This situation is reversed if you are playing the bookmaker, perhaps on a betting exchange, where you want to 'lay' bets at lower odds. There are two options if you are looking for the best odds on horse racing. Firstly, using a betting exchange is one way of getting, in general, better odds than using a traditional bookmaker. Betfair SP consistently outperforms the normal industry starting price.
- Odds Portal aggregates betting odds from over 200 bookmakers globally.
- Oddschecker provides real-time comparisons for major sports leagues.
- BetExplorer features historical odds data and statistical analysis.
- BetsAPI offers live scores and odds for in-play betting markets.
- Soccerway includes odds alongside fixtures, results, and standings.
The other way of finding the best odds on horse racing is using an odds matrix. On OLBG we researched and discovered the best bookie for horse racing. It is to help bettors make informed decisions by identifying the best available odds for your bet. Betting odds represent the probability of a particular outcome. The bookies all construct their books based on percentage probability and understand it fully, we as punters need to do the same. The bookmakers are in business to make a profit. They build in a bet uk betting sites list co uk profit margin on all events, this is called the overround.
- Use the "percentage difference" calculator to find value bets.
- Filter comparisons by specific bet type, like "Both Teams to Score".
- Sort bookmakers by their cash-out offer or early payout terms.
- Utilize the "tracker" feature to follow odds for a future event over time.
In a two runner race the true odds are 1/1 or even money - 50/50. (100%) The bookmakers instead of offering the true odds of 1/1 will offer both competitors at odds of 10/11, that comes to (104.72%). The 4.72% is their profit margin. The bookmakers instead of offering the true odds of 1/1 will offer both competitors at odds of 10/11, that comes to (104.72%). Using an odds comparison tool should be part of your betting life but just as important is to be responsible when gambling.
- Free membership allows basic odds comparison and alerts.
- Premium subscriptions provide arbitrage opportunity scanners.
- Some sites charge for detailed historical data exports.
- Ad-supported models offer core comparison tools at no direct cost.
- Mobile app access may require a separate in-app purchase.
On OLBG we always advise you bet within your means and have a range of helpful articles dedicated to this.
Compare betting odds
Who is the biggest betting site?
On this page, we will look at which betting sites offer the best odds (the lowest margins) to the UK market. There will also be some tips on how to get further enhancements on the BOG and starting price. We also provide you with a list of the top 10 bookmakers in terms of odds, and our team of experts is updating the list on a regular basis. By clicking on a bookmaker's name, you will be able to read an in-depth 2025 review and more info about the bookies’ main features. The "Sponsored" icon means that the position of the bookmaker in this list is determined on a commercial basis.
Stop Paying for Data. Start Betting the Edge.
Betting odds represent the probability of a particular outcome. The bookies all construct their books based on percentage probability and understand it fully, we as punters need to do the same. The bookmakers are in business to make a profit. They build in a bet uk betting sites list co uk profit margin on all events, this is called the overround. In a two runner race the true odds are 1/1 or even money - 50/50.
2. Swifty Sports - Best Odds Guaranteed
(100%) The bookmakers instead of offering the true odds of 1/1 will offer both competitors at odds of 10/11, that comes to (104.72%). The 4.72% is their profit margin. The bookmakers instead of offering the true odds of 1/1 will offer both competitors at odds of 10/11, that comes to (104.72%). Using an odds comparison tool should be part of your betting life but just as important is to be responsible when gambling. On OLBG we always advise you bet within your means and have a range of helpful articles dedicated to this.
Payment Methods
On this page, we will look at which betting sites offer the best odds (the lowest margins) to the UK market. There will also be some tips on how to get further enhancements on the BOG and starting price. We also provide you with a list of the top 10 bookmakers in terms of odds, and our team of experts is updating the list on a regular basis. By clicking on a bookmaker's name, you will be able to read an in-depth 2025 review and more info about the bookies’ main features. The "Sponsored" icon means that the position of the bookmaker in this list is determined on a commercial basis. The ratings on Legalbet are compiled as honestly and objectively as possible, so we indicate "Not for sale" on them to make it clear which are based on merit. Difficult to find contact details for support Live Streaming of most “In Play” events "Best Odds Guaranteed" on UK Horse Racing High chance of your account being limited Loads of bonuses and promotions for existing customers Online winnings can be withdrawn as cash High chance of your account being limited Great Welcome Offer: Bet £10 Get £30 in Free Bets Unique “Help Page” with guidance through the Unibet website Slightly outdated visual components on the site Competitive odds for horse and dog racing Multiple payment options for deposit and withdrawal Good betting coverage that includes multiple betting options Bet Builder, partial and complete Cash Out features Vast sports betting markets and numerous games Customer support available via email and instant messaging 7 days a week Bonuses, promotions, and competitions may be cancelled at any time Deposit limits and reality check for responsible betting and gambling Information is easy to find and clear to read Over 1500 outcomes for top football events Mobile Apps: native apps for both iOS and Android Video feeds are only for a few sports (tennis, basketball, Esports) High tennis margins reach up to 6.25% There are many promotions for new and existing customers Great range of In-Play betting options Mobile-optimised software ensures an intuitive betting experience on the go Chat support is often busy and may take time to get back to you There are fees for withdrawals and slow withdrawal times No live chat to contact customer support Excellent range of sports to bet on, from popular sports to regional favourites Compatible with all modern iOS and Android smartphones Generous welcome offer to kickstart the betting journey 100,000+ pre-match and In-Play betting options Has a betting blog for gambling insights App not available on Apple App Store Customer support can be reached 24/7 Quite a hard colour scheme to look at for long The withdrawal time can be as much as 6 days Wide range of sports to bet on Browser-only gambling platform, (no mobile app available) No telephone number or Email contacts listed Interesting bonuses for new and existing customers Up to 2000 outcomes for top-tier football 1% fee for each withdrawal up to £3 Coral Connect card means instant cash withdrawals Packed with Horse racing offers and promotions Odds are competitive but rarely the best Offers a wide range of sports and markets Live streaming is only available for horse and greyhound races A wide range of sports betting markets on offer Customer care is not available by phone Bet Builder, Partial Cash Out, Acca Boost, Early Payout There are few bonuses and live match streams No live chat for customer care enquiries No new customer offer at the time of writing Comprehensive and reliable betting options for major events The helpful and well-organised support centre makes finding solutions to your betting issues simple Multi-view makes In-Play betting a much more engaging experience Lack of UK and Irish racing markets You cannot deposit more than £2,000 Apps available both for iOS and Android Presence of live betting section with a virtual live tracker Live streaming available only for horse racing Access to the casino and live casino games Over 1,800 outcomes for major football matches Mobile app available for iOS and Android users Quick access to sports betting on the homepage Good welcome offer with six different Free bets to use Good quality live streaming for in-play events Slow to connect customer support on Live Chat Quick to ban customers from Free bet offers. Website can be hard to navigate at times.
OLBG Experts Top 10 Best Overall UK Betting Sites
The ratings on Legalbet are compiled as honestly and objectively as possible, so we indicate "Not for sale" on them to make it clear which are based on merit. Difficult to find contact details for support Live Streaming of most “In Play” events "Best Odds Guaranteed" on UK Horse Racing High chance of your account being limited Loads of bonuses and promotions for existing customers Online winnings can be withdrawn as cash High chance of your account being limited Great Welcome Offer: Bet £10 Get £30 in Free Bets Unique “Help Page” with guidance through the Unibet website Slightly outdated visual components on the site Competitive odds for horse and dog racing Multiple payment options for deposit and withdrawal Good betting coverage that includes multiple betting options Bet Builder, partial and complete Cash Out features Vast sports betting markets and numerous games Customer support available via email and instant messaging 7 days a week Bonuses, promotions, and competitions may be cancelled at any time Deposit limits and reality check for responsible betting and gambling Information is easy to find and clear to read Over 1500 outcomes for top football events Mobile Apps: native apps for both iOS and Android Video feeds are only for a few sports (tennis, basketball, Esports) High tennis margins reach up to 6.25% There are many promotions for new and existing customers Great range of In-Play betting options Mobile-optimised software ensures an intuitive betting experience on the go Chat support is often busy and may take time to get back to you There are fees for withdrawals and slow withdrawal times No live chat to contact customer support Excellent range of sports to bet on, from popular sports to regional favourites Compatible with all modern iOS and Android smartphones Generous welcome offer to kickstart the betting journey 100,000+ pre-match and In-Play betting options Has a betting blog for gambling insights App not available on Apple App Store Customer support can be reached 24/7 Quite a hard colour scheme to look at for long The withdrawal time can be as much as 6 days Wide range of sports to bet on Browser-only gambling platform, (no mobile app available) No telephone number or Email contacts listed Interesting bonuses for new and existing customers Up to 2000 outcomes for top-tier football 1% fee for each withdrawal up to £3 Coral Connect card means instant cash withdrawals Packed with Horse racing offers and promotions Odds are competitive but rarely the best Offers a wide range of sports and markets Live streaming is only available for horse and greyhound races A wide range of sports betting markets on offer Customer care is not available by phone Bet Builder, Partial Cash Out, Acca Boost, Early Payout There are few bonuses and live match streams No live chat for customer care enquiries No new customer offer at the time of writing Comprehensive and reliable betting options for major events The helpful and well-organised support centre makes finding solutions to your betting issues simple Multi-view makes In-Play betting a much more engaging experience Lack of UK and Irish racing markets You cannot deposit more than £2,000 Apps available both for iOS and Android Presence of live betting section with a virtual live tracker Live streaming available only for horse racing Access to the casino and live casino games Over 1,800 outcomes for major football matches Mobile app available for iOS and Android users Quick access to sports betting on the homepage Good welcome offer with six different Free bets to use Good quality live streaming for in-play events Slow to connect customer support on Live Chat Quick to ban customers from Free bet offers. Website can be hard to navigate at times. Loads of bonuses and promotions for existing customers High chance of your account being limited Many tools for responsible betting and self-control Customer service hidden deep inside support contacts Wide variety of In-Play markets available. Great range of promotions including free bet best free bets new customers to enter offers.
Grand National
Create your own bespoke bets with Ladbrokes’ #GetAPrice feature. Ladbrokes can be quick to limit the wagering ability of winning players. Live streaming is only available for horse racing Over 1,000 outcomes for EPL games Bet Builder, partial and complete Cash Out features Race streams for horses and greyhounds are free Range of new and existing user bonuses Fantastic range of Free bet bonuses in the business. Best Odds Guaranteed on all UK horse racers. Loyalty club offering Free Bets and Free Spins each week.
What Are the Differences Between Online and Offline Odds?
Good Esports coverage, including many popular games Exclusive “Pools Games” for a unique gambling experience Loads of bonuses and promotions for existing customers Online winnings can be withdrawn as cash Focused on UK betting (Football and Horses) High chance of your account being limited Intuitive app for a mobile-friendly betting experience 24/7 live chat feature to contact the customer service team Very helpful Live chat available 24/7 Some payment methods are not eligible for bonuses Lack of value in general sports odds Betfair has a strong competitive position, allowing bettors to place wagers both with the bookmaker and among themselves on the exchange. Bet at some of the odds matched with other players. When someone wins more than £250,000 in lifetime winnings, betfair implements premium fees, increasing its commission from 5% to 60%. It can be challenging for bettors to choose where to place their bets because of the market's size. 24/7 live chat with intelligent bots and friendly humans Live chat to customer support, 24/7 Many sports to bet on, including horse racing Multiple casino games and live Casino options Difficult to find contact details for support Loads of bonuses and promotions for existing customers High chance of your account being limited Great Welcome Offer: Bet £10 Get £30 in Free Bets Unique “Help Page” with guidance through the Unibet website Slightly outdated visual components on the site Apps available both for iOS and Android Presence of live betting section with a virtual live tracker Live streaming available only for horse racing Very helpful Live chat available 24/7 Wide range of sports to bet on Access to the casino and live casino games Mobile app available for iOS and Android users Quick access to sports betting on the homepage Live streaming is only available for horse racing Offers a wide range of sports and markets Live streaming is only available for horse and greyhound races Good welcome offer with six different Free bets to use Good quality live streaming for in-play events Slow to connect customer support on Live Chat Intuitive app for a mobile-friendly betting experience 24/7 live chat feature to contact the customer service team Competitive odds for horse and dog racing No live chat for customer care enquiries No new customer offer at the time of writing Coral Connect card means instant cash withdrawals Packed with Horse racing offers and promotions Odds are competitive but rarely the best Betfair has a strong competitive position, allowing bettors to place wagers both with the bookmaker and among themselves on the exchange. Loads of bonuses and promotions for existing customers High chance of your account being limited Many tools for responsible betting and self-control Customer service hidden deep inside support contacts Wide variety of In-Play markets available. Great range of promotions including free bet best free bets new customers to enter offers. Create your own bespoke bets with Ladbrokes’ #GetAPrice feature. Ladbrokes can be quick to limit the wagering ability of winning players. Live streaming is only available for horse racing Over 1,000 outcomes for EPL games Bet Builder, partial and complete Cash Out features Race streams for horses and greyhounds are free Range of new and existing user bonuses Fantastic range of Free bet bonuses in the business. Best Odds Guaranteed on all UK horse racers. Loyalty club offering Free Bets and Free Spins each week. Good Esports coverage, including many popular games Exclusive “Pools Games” for a unique gambling experience Loads of bonuses and promotions for existing customers Online winnings can be withdrawn as cash Focused on UK betting (Football and Horses) High chance of your account being limited Intuitive app for a mobile-friendly betting experience 24/7 live chat feature to contact the customer service team Very helpful Live chat available 24/7 Some payment methods are not eligible for bonuses Lack of value in general sports odds Betfair has a strong competitive position, allowing bettors to place wagers both with the bookmaker and among themselves on the exchange. Bet at some of the odds matched with other players. When someone wins more than £250,000 in lifetime winnings, betfair implements premium fees, increasing its commission from 5% to 60%. It can be challenging for bettors to choose where to place their bets because of the market's size. 24/7 live chat with intelligent bots and friendly humans Live chat to customer support, 24/7 Many sports to bet on, including horse racing Multiple casino games and live Casino options Difficult to find contact details for support Loads of bonuses and promotions for existing customers High chance of your account being limited Great Welcome Offer: Bet £10 Get £30 in Free Bets Unique “Help Page” with guidance through the Unibet website Slightly outdated visual components on the site Apps available both for iOS and Android Presence of live betting section with a virtual live tracker Live streaming available only for horse racing Very helpful Live chat available 24/7 Wide range of sports to bet on Access to the casino and live casino games Mobile app available for iOS and Android users Quick access to sports betting on the homepage Live streaming is only available for horse racing Offers a wide range of sports and markets Live streaming is only available for horse and greyhound races Good welcome offer with six different Free bets to use Good quality live streaming for in-play events Slow to connect customer support on Live Chat Intuitive app for a mobile-friendly betting experience 24/7 live chat feature to contact the customer service team Competitive odds for horse and dog racing No live chat for customer care enquiries No new customer offer at the time of writing Coral Connect card means instant cash withdrawals Packed with Horse racing offers and promotions Odds are competitive but rarely the best Betfair has a strong competitive position, allowing bettors to place wagers both with the bookmaker and among themselves on the exchange.