9/10
Betfair were responsible for a betting revolution over five years ago, and has since grown into the biggest and most widely trusted betting exchange in Britain. They mix a high standard of service with some of the best horse racing betting opportunities around. Boasting one of the best racing services in the business, they have lured a lot of the online betting community into their business. A vast website with huge betting opportunities, bbecause of the unique way they operate, they claim to be able to offer odds which are on average 20% higher than bookmakers and with in play betting and the option to bet on something not to happen, Betfair must be considered one of the best in the business.