Bettors have taken notice of Jackson Koivun and how he finished at the 2026 Presidents Cup on Sunday.
A once-controversial captain's pick, Koivun was the only undefeated U.S. player at Medinah and knocked out Si Woo Kim in singles, finishing at 2-0-1 on the week and continuing to live up to the hype since turning professional in June. He became the second-youngest U.S. Presidents Cup team member last week, and his teammates had high praise for him after the competition.
However, in the sports betting world, Koivun is a hot commodity with the Masterslurking almost 6 months away.
Since his Sunday Singles win, Koivun has accounted for 57 percent of all bets, per Hard Rock Bet data, on the 2027 Masters winner marker. That's more than the rest of the field
combined. That betting activity is 10 times higher than before the Presidents Cup.
Since July 1, Koivun has accounted for the third-most Masters winner bets, behind only two-time Masters champion Scottie Scheffler and Sam Burns.
Koivun's odds on Hard Rock Bet remain at +4000.
This week, the 21-year-old is the favorite to win the PGA Tour's Bank of Utah Championship at Black Desert Resort in Ivins, Utah.
Cameron Jourdan is an assistant editor of Golfweek, covering college and amateur golf, the PGA Tour and plenty more. Follow Cameron on X/Twitter (@Cam_Jourdan) or Instagram (@GolfweekJourdan).
This article originally appeared on Golfweek: Jackson Koivun's Presidents Cup performance sparks massive betting surge for 2027 Masters
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