Having his first run since his historic victory in the Belmont, the Bob Baffert trained colt had pleased in the lead-up to the Haskell and the win was never in doubt.
He travelled smoothly for Victor Espinoza in second place and forged to the
front turning for home. American Pharoah quickly opened up a big space on his rivals and was geared down to the line to win the nine furlong Haskell as he pleased.
A homebred for Zayat Stables, American Pharoah is the first Triple Crown winner in 37 years and has become a sporting superstar in the US with some 60,000 fans in attendance at Monmouth to catch a glimpse of the champion.
"I couldn't believe the crowd and how loud they were," said Bob Baffert.
"I'm glad they got to see a great horse."
Owner breeder Ahmed Zayat was near speechless in the aftermath, overcome with emotion after winning in his home state of New Jersey.
"I am extremely proud and honoured, it's a privilege to be here with this horse," he said.
"He's a superstar that has touched everybody's heart."
American Pharoah is the best of seven stakes-winners by promising young sire Pioneerof the Nile, a Group I Santa Anita Derby winner by Empire Maker.
This is the Mr Prospector sireline coming down through Fappiano and Unbridled.
He is one of two winners from Littleprincessemma, a half-sister to Group II winner Storm Wolf and Group III winner Misty Rosette.
A seven-time Group I winner that was Champion 2YO Colt last year, American Pharoah has won eight of nine starts and will be Champion 3YO and US Horse of the Year for 2015.
No further race plans were confirmed for American Pharoah, although the $5million Group I Breeders Cup Classic in October will no doubt be under consideration.
Footnote: Coolmore already have a Haskell Invitational winner on the roster for Australia this year in exciting More Than Ready stallion Verrazano (USA), who won in 2013 and stands this spring at a fee of $13,750.
