I've done a lot on Betfair, Matchbook and BetDAQ (which I don't think exists any more) but I've reigned it in a lot and don't really bet any more. It's easier making that decision when you've been banned from places for winning. It's a good business model isn't it? If you lose, you can keep betting. If you win, you get banned!

The funny thing about the Serena Williams bet is that I bet £1. I thin the odds were something like 17/1. Coral banned me for that. Quite incredible when you think about it.