Hi Deborah,
I ran the Triple Crown through my data base at the time & it showed a substantial loss every year , over 4 years..

You would get a better result just betting the 2nd, 3rd & 4th Fav same amount on each in races with 1-9 runners SR 45%
Max price $25.00
Using Betfair prices .
Use Bet Trader Pro (free) so as to bet below the Betfair min .
1c bets if one wishes.

Try not to use TAB prices because they are nearly always lower & unlikely to show a profit, because they work on 118.5% overound as Betfair is 5-10%

Cheers.

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Cheers.