Since I've opened account my account at Betfair I knew that horse racing is a best sport for making money on betting exchange. There are plenty of methods how you can do it: back favorites, lay horses, trade odds, run in-play systems or use any other horse racing system to get profit. To be honest I tried different methods but most of them were not profitable for me because of one simple reason - I am not a horse racing specialist and it's not enough to follow market moves to stay profitable in long run. So I decided to quit this idea with horse racing at least until the day when I will find service which provides winning horse racing betting tips.