The 21-year-old rookie resisted a final-round charge from world No. 1 Scottie Scheffler to claim his first PGA Tour title in only his third start as a professional
Jackson Koivun completed one of the most striking early breakthroughs in recent PGA Tour history on Sunday, holding off a relentless challenge from Scottie Scheffler to win the 3M Open in Blaine, Minnesota.
The 21-year-old American closed with a five-under-par 66 at TPC Twin Cities, finishing at a tournament-record 25 under par and securing a three-stroke victory over the world’s top-ranked player. Koivun’s 72-hole total of 259 surpassed the event’s previous scoring record and delivered his first PGA Tour title in only his third professional appearance.
Scheffler applied considerable pressure with a bogey-free final-round 63, reducing a deficit that had stood at six strokes when the day began. His eight-under-par performance carried him to 22 under, but Koivun remained composed enough to prevent the contest from becoming a late collapse.
The victory was built as much on control as aggression. Koivun began the final round with three birdies in his opening six holes, including an 11-foot putt at the par-three fourth and another gain at the par-five sixth. That fast start expanded his advantage and helped absorb the pressure created by Scheffler’s charge.
Koivun added another important birdie at the 16th, moving to 25 under and restoring a decisive margin as the tournament entered its final holes. He then protected his lead with pars at the 17th and 18th, completing a second consecutive bogey-free round. His final putt, a 15-footer for par, was followed by an emphatic fist pump as the scale of his achievement became clear.
The rookie’s calm performance was particularly impressive because of the quality of the player chasing him. Scheffler, a multiple major champion and the dominant figure in the men’s game, has repeatedly demonstrated an ability to force leaders into mistakes through sustained scoring pressure.
Koivun refused to yield. He did not record a bogey after the 12th hole of his second round and played the entire weekend without dropping a shot. That discipline proved critical on a TPC Twin Cities layout where water hazards can quickly punish imprecise approaches or overly aggressive decisions.
The foundations of the victory were established on Saturday, when Koivun produced a spectacular 10-under-par 61. He played the back nine in a tournament-record 28, completing the round with an eagle at the par-five 18th to take a three-shot lead into Sunday.
That performance transformed him from an emerging contender into the player everyone else had to catch. The challenge on Sunday was therefore not simply to continue making birdies, but to handle the unfamiliar pressure of protecting a PGA Tour lead while Scheffler climbed the leaderboard behind him.
Koivun’s response suggested a maturity beyond his limited professional experience. Rather than attempting to match every Scheffler birdie with reckless attacking play, he relied on accurate ball-striking, conservative targets when necessary and a putting performance strong enough to preserve momentum.
His tournament total consisted of four rounds in the 60s and established the lowest 72-hole score in 3M Open history. He became the seventh first-time PGA Tour winner of the season.
The result accelerates what was already regarded as one of American golf’s most promising careers. Koivun recently completed a decorated collegiate career at Auburn University, where he became the first male golfer to win the Haskins, Hogan and Nicklaus national player-of-the-year awards twice. He ended his amateur career only five weeks before his victory in Minnesota.
His transition to professional golf has been unusually rapid. Many elite amateurs require months or years to adjust to stronger fields, longer schedules and the financial pressure of playing for Tour status. Koivun has instead converted his talent into a victory almost immediately.
The title brings consequences extending well beyond the trophy. Koivun earned $1.584 million from the tournament’s $8.8 million prize fund and collected 500 FedEx Cup points. He also secured exemptions into the 2027 Masters, PGA Championship and Players Championship, placing several of golf’s most prestigious events on his schedule.
For Scheffler, the runner-up finish represented another impressive performance that fell just short of victory. His final-round 63 would ordinarily have been enough to overhaul an inexperienced leader, but Koivun’s mistake-free golf denied him the opening he required.
Brian Harman, Denny McCarthy, Chandler Phillips and Hideki Matsuyama finished tied for third at 20 under, five strokes behind the champion. Their presence further emphasised the quality of the field Koivun defeated in earning his first title.
The victory does not by itself guarantee that Koivun will immediately become one of the Tour’s dominant players. Maintaining success across a full season, competing regularly in major championships and adapting to different course conditions will present more demanding tests.
Nevertheless, winning while paired against the pressure generated by the world No. 1 provides powerful evidence that his game is already capable of succeeding at the highest level.
Koivun arrived in Minnesota as a highly regarded rookie making only his third professional start. He departed as a PGA Tour champion, a tournament record-holder and one of the most closely watched young players in golf.
His victory was not simply a surprise result. It was a demonstration that a new contender may have entered the sport’s elite far sooner than expected.
