Here's a seris of trifecta bets for Eagle Farm race 1. They are arrange to ensure a collect.

Race 1

1,2,3,4,5,6,7
1,2,3,4,5,8,9
1,2,3,6,7,8,9
1,4,5,6,7,8,9
2,3,4,5,6,7,8
2,3,4,5,6,7,9