Gee Mofo,I admire your honesty but holy moly -26% is more than the TAB takes out.
I will do my best to guide you in the error of your ways.Firstly your bouncing the ball in too many activities.I feel really ordinary on the weekdays without AFL football but my bank balance is doing fine.
Do this.Calculate how much it is you invest every week on Sport and apportion the greater amount of this figure on the Sports with the better return.Like cricket.
It basically boils down to "you need to put more on the winners than on the losers".I said this to Mr J one time,and his response was,yeah but you don't know the result until after the event.In your case you have kept records of your more succesful events so they are the ones to buy more shares in.
Any one else I can help,please do not be afraid to ask.