You will hear us mention time and time again that Betfair trading is all about gaining an edge and hammering that home time after time to earn money over the long run. Sounds easy right? Well it is, as long as you can find an edge. Fortunately, we have software, training and pro traders on hand to help you find one. Today I want to talk about one edge I have used to my advantage over the years and is usually pretty easy to spot and take advantage from, I call it - 'Historical Big Club Bias'.