5 first round races of 5, top 3 from each race go through.
Race of winners, top 3 go through (thanks to whoever thought of this first).
Final elimination race. 2nd and 3rd place finishers from race of winners are joined by 2nd and 3rd place finishers from first round race won by 1st finisher in winners race and 2nd place finisher from first round race won by 2nd place finisher in the race of winners.
The winner of the race of winners, plus the 1st and 2nd place finishers from the final elimination race are the elite horses.
