Here’s how you can still bet on American Pharoah

American Pharoah isn’t finished chasing history. Or giving horse players a chance to bet on him.

After becoming the first horse in 37 years and the 12th ever to win the Triple Crown with Saturday’s win in the Belmont Stakes, American Pharoah has a chance to become the first horse to complete a grand slam with a victory in the Breeders’ Cup Classic on October 31 at Keeneland Race Course in Lexington, Kentucky. The richest horse race in North America, the $5 million Breeders’ Cup Classic was first run in 1984.

William Hill sports book is offering a prop on “Will American Pharoah win the 2015 Breeders Cup Classic.” The “yes” opened at 3-1 odds (plus-300) with the “no” the 5-18 (minus-360) favorite. If American Pharoah doesn’t race in the Breeders Cup, “no” is the winner.

Ahmed Zayat, American Pharoah’s owner and a New Jersey resident, said Monday on MSNBC’s “Morning Joe” show that the Triple Crown winner’s next race would “probably” be the $1 million William Hill Haskell Invitational on August 2 at Monmouth Park in Oceanport, N.J.

Bob Baffert, American Pharoah’s trainer, has won the Haskell Invitational a record seven times, including last year with Bayern, who went on to win the Breeders’ Cup Classic.

Most horse players who bet $2 on American Pharoah to win the Belmont Stakes kept their tickets as souvenirs instead of cashing them in, leaving $315,829 behind.

Belmont Stakes spokesman John Durso Jr. told ESPN.com that there were 94,128 $2 win tickets on American Pharoah purchased at Belmont Park and Aqueduct Racetrack, both of which are controlled by the New York Racing Association. But after the horse won the Triple Crown, 90,237 of the betting slips, which are each worth $3.50, went uncashed.