Jackson Koivun Holds Off Scottie Scheffler to Win 3M Open

What happened: The Guardian reports that Jackson Koivun won the 3M Open on Sunday in Blaine, Minnesota, shooting a five-under-par 66 to finish 25 under. Scottie Scheffler closed with a 63 at TPC Twin Cities but ended three shots behind Koivun, who claimed his first PGA Tour victory in only his third professional start.

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Result up top: Koivun’s win is the headline because of both the opponent and the timing. Holding off Scheffler is a serious result in any context; doing it as a 21-year-old rookie less than two months after helping Auburn win an NCAA championship gives the victory immediate weight. The source says Koivun played the final two rounds of his third tournament since turning professional without making a bogey.

Why it matters: The 3M Open now becomes an early career reference point for Koivun. A first PGA Tour win can sometimes arrive after years of building toward a breakthrough. Here, according to the source, it came almost immediately after his college career, and against a closing charge from one of the sport’s most prominent names. That combination makes the result more than a routine leaderboard surprise.

Tournament impact: Scheffler’s 63 created pressure, but Koivun’s 66 was enough to protect the lead and turn the event into a statement win. The three-shot margin matters because it shows he was not merely hanging on by the thinnest possible edge. With the final two rounds completed bogey-free, the confirmed story is one of control under tournament stress rather than a chaotic finish.

What changed: Koivun is no longer just a recent Auburn standout entering the professional game. He is now a PGA Tour winner. The source does not spell out exemptions, ranking movement, FedEx Cup consequences, or future schedule changes, so those should be tracked separately. But from a competitive reputation standpoint, the shift is immediate: he has already beaten a field that included Scheffler and converted Sunday pressure into a trophy.

What to watch: The next test is repeatability. One PGA Tour win establishes Koivun as a player to follow closely, but the larger question is how quickly he adapts to week-to-week professional demands. His bogey-free finish is the strongest confirmed performance signal in the source, while the next tournaments will show whether this was an early peak or the start of a sustained rise.

Confidence: Confirmed by The Guardian is Koivun’s 25-under winning total, final-round 66, three-shot margin over Scheffler, Scheffler’s closing 63, the TPC Twin Cities setting, Koivun’s age, and that this was his third professional start. Still needing follow-up are full round-by-round scoring, field context beyond Scheffler, ranking effects, and Koivun’s next schedule.