Does anyone have any thoughts on this subject, I have a plan that constantly throws 2 runners in a race, the race types can be any, I end up with about 25% winners, but backing em all, end up just short of even. I've had several attempts to try and split the selections so there is always only 1 bet per race, I've tried splitting based on price, position in the pre-post market, rating, Draw, Last start.
So far haven't managed to change that small loss into a profit,

any ideas?