His reward: $18,346,673.
Esfandiari defeated Sam Trickett on the 85th hand of the final table of the three-day event when he got three fives before the turn.
“It’s unbelievable,” Esfandiari said. “It’s euphoric. I’m so happy right now, and I don’t even think it has set in.”
Trickett’s consolation prize was $10.1 million.