Jackson Koivun wins 3M Open in third professional start

Jackson Koivun won the 3M Open at TPC Twin Cities in Blaine, Minnesota, closing with a 5-under 66 to finish at a tournament-record 25-under 259 and beat Scottie Scheffler by three strokes. The 21-year-old’s victory came in just his third professional start, a pace of progress that is almost unheard of in modern men’s golf.

The win was even more striking because Scheffler was not a distant name on the entry list. He was in the chase at the end, after committing months earlier to play the 2026 3M Open, and Koivun had to hold up under the pressure of a leaderboard that still included one of the game’s dominant players. FOX 9 Minneapolis-St. Paul said it was Koivun’s first PGA Tour win, and the result instantly moved him from prospect to headline name.

Koivun’s path through the week made the finish look less like a one-round burst and more like a player building toward a breakthrough. Golf Channel said he set a tournament-record back nine during the third round, a stretch that gave him the separation needed before Sunday’s final push. By the time he signed for 66, the tournament had become a test of whether a newcomer could protect a lead against a major star and finish with the steadiness of a veteran.

The setting added weight to the result. The 2026 3M Open carried an $8.8 million purse, and PGA Tour wins bring the kind of status and access that can reshape a season. Koivun already had the résumé of a standout college player at Auburn, but winning this quickly on the PGA Tour changes the conversation around him from future talent to immediate threat. Golfweek called him precocious, and this week gave that label sharper meaning.

What makes the victory matter beyond the scorecard is the company Koivun kept on the leaderboard. Beating a field chased by Scheffler, then doing it in a third professional start, is not a routine tour win or a gradual climb up the ranks. It is the kind of result that can announce a new player before the sport has fully adjusted to him, and the 3M Open became the place where Koivun forced that adjustment.