American rookie Jackson Koivun secured his first career PGA Tour victory on Sunday at the 3M Open in Blaine, Minnesota, according to Theguardian. Playing in just his third tournament since turning professional, the 21-year-old finished at 25-under 259 to beat world No. 1 Scottie Scheffler by three strokes at TPC Twin Cities, as reported by BBC.
Rookie Jackson Koivun Claims Maiden PGA Tour Title at 3M Open
Koivun entered the final round with a three-stroke lead after shooting a 10-under 61 on Saturday, which featured a back-nine 28 with two eagles, according to Kalshi. He maintained his composure on a 97-degree afternoon to card a bogey-free, five-under 66, setting a new tournament record for the 72-hole total, which surpassed Lee Hodges’ previous mark of 24-under 260 set in 2023, as noted by Nbcwashington.
Fending Off a Charge From Scottie Scheffler
Scheffler applied heavy pressure during the final round, closing with an eight-under 63 that included three consecutive birdies to begin the back nine and two more in the final three holes, leaving him two strokes behind before Koivun pulled away, according to Nytimes. The runner-up finish marked Scheffler’s fifth second-place showing of the season, per Nbcwashington.

I had some nerves coming down 18,
Koivun told CBS, according to BBC. All throughout the crowd I kept hearing 'Scottie's coming, Scottie's coming.' I just tried to tune that out and keep playing the golf I knew I could and was able to find some good putts coming down the stretch.
Koivun secured his cushion by making his fifth birdie of the day at the 16th hole, finishing his final 36 holes without a single bogey, according to Golfchannel.
From Amateur Honors to Professional Breakthrough
Koivun’s victory comes barely a month after turning professional on June 22 following the U.S. Open at Shinnecock Hills, where he tied for 23rd to earn low-amateur honors, according to Nytimes. Earlier in June, he helped Auburn University capture its second NCAA team title in three years, capping a collegiate season where he swept major awards including the Haskins, Hogan, and Nicklaus awards, per Nytimes and Theguardian.

With the victory in Minnesota, Koivun earned $1,584,000 from the $8.8 million purse and jumped 124 spots in the FedEx Cup standings to 70th place, moving into the final qualifying spot for the playoffs with two regular-season events remaining, according to Nbcwashington and Golfchannel. He became the fourth rookie winner on the PGA Tour this season, per Nbcwashington.
Leaderboard and Tournament Context
A trio of Americans—Denny McCarthy (66), Brian Harman (65), and Chandler Phillips (67)—tied for third place alongside Japan’s Hideki Matsuyama (64) at 20 under par, five strokes behind Koivun, according to Theguardian and BBC.
Earlier in the week, Michael Kim fired a 12-under 59 on Friday—marking the 15th score of 59 in PGA Tour history—though he ultimately finished in a tie for 10th place after closing rounds of 70 and 69, according to BBC and Kalshi. Defending champion Kurt Kitayama finished tied for 24th at 13 under par after shooting a final-round 68, according to Theguardian.
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