You're right Chief. You can't win one cent more than what's in the total pool for that race. If the person who landed the trifecta on this race had put, say $5 (10 units) on that combination, the trifecta would have only paid $9,200. Yet if he was the only winner, he would have still collected $46,000.

In fact, from memory, the NSW and QLD TAB trifecta divvies on the same race paid $15,000 and $13,000 respectively. I'm not sure what the pools were in those states but there were obviously more winning tickets.

The one thing that never changes is the commission that goes to the TAB.