Betfair has become the largest online betting site in the UK and maintains that reputation with a unique style of allowing players to place bets. Punters can choose their own odds and then make the bets against other players, this is even allowed after an event has started. The site charges a 5% commission on net winnings, but big bettors can work out a deal and lower that to as little as 2%. Because of the unique rules involved in Betfair betting, many people experienced with the system relate it to a Stock Exchange, and some professionals even play the market for profit using the same methods used to make money at day trading. Read more...

Bet365's horse racing section is actually a part of their sportsbook, which is a part of the larger bet365 Group Limited, based in the UK and licensed and regulated by the government of Gibraltar. Make bets on UK, Irish, and International races; flat racing, national hunt racing, turf, or all weather racing, Bet365 covers it all. Bet365 supports 17 different languages, serves hundreds of thousands of customers, and is truly one of the biggest bookies around. Read more...

Bodog has a casino and a poker room, but they got their start as a sportsbook and racebook back in 1994. With more than 15 years in the business, it's safe to say Bodog has learned how to keep bettors happy with their options and customer service. The racebook allows bettors to take action on more than 80 US and Australian thoroughbred and harness races. The book is filled with up-to-date information on all the races, including horses, jockeys, and scratches. Read more...