Since my last post I did some work on the random races sequence. It won't work!
Take this sequence of races: W W L L L W L W L L L L W
To avoid the cluster of 4 losses let's bet every second race with two bots. You'd get: W L L L L L W and W L W W L L
Now you've got a cluster of 5 losses with one bot!
The only time it might work is with a selection system with a 9 -11% chance of a win, like horses with odds around $10. Mathematically they rarely exceed 3 consecutive wins, so splitting races might work but then you might strike a race sequence like: L L L W L W L W L L L L L L and you'd still get three wins in a row.
Back to the drawing board, RP