Aaron Rai's first major victory at the PGA Championship is being hailed as one of the most surprising wins in golf betting history. Before the tournament at Aronimink Golf Club, sportsbooks like DraftKings listed Rai at 290-1 odds to win the Wanamaker Trophy. Following his victory, it was reported that a $288 wager at 230-1 odds yielded a payout of $66,240. Rai's odds made him the biggest long shot to win a major in at least 20 years, surpassing notable past winners like Phil Mickelson and Louis Oosthuizen, both of whom were at 200-1. Betting interest in Rai was minimal, with only 0.1% of tickets sold before the tournament, which increased to 0.6% by the end of the third round. This indicates that sportsbooks likely performed well overall, despite having to pay out substantial winnings to a few bettors. The favorite, Scottie Scheffler, finished tied for 14th, highlighting the unpredictability of the tournament and the betting landscape.