|World Series of Poker|
Main Event finish
|World Poker Tour|
At the 2004 United States Poker Championship, he had a huge chip lead heading into the final table. However, a bad beat against Hoyt Corkins (which prompted D'Agostino to angrily push his chip Corkins' way) led to D'Agostino's pocket 10s losing to quad 7s, leaving John with just one chip before he was eliminated in 6th place.
He made a second WPT final table in the fourth season Borgata Poker Open event, where he finished in 4th place, earning $349,685. Later in the season he finished 2nd to Michael "The Grinder" Mizrachi in the 2006 Borgata Winter Poker Open, earning $591,312.
D'Agostino plays online at Full Tilt Poker as one of their "Full Tilt Pros"
As of 2008, his total live tournament winnings exceed $1,600,000.