Jackson Koivun Wins the 3M Open in His Third Pro Start and Holds Off Scottie Scheffler

Image: Birdie Report

Jackson Koivun did not just survive Sunday.

He finished the job like this was normal.

According to the PGA TOUR’s official final-round coverage published Sunday, July 26, 2026, plus an Associated Press report from Sunday and the official tournament leaderboard checked on Monday, July 27, Koivun won the 3M Open at 25-under par with a closing 5-under 66, beating Scottie Scheffler by three shots at TPC Twin Cities.

That is a ridiculous sentence for a player in his third professional start.

This piece is based on the PGA TOUR’s July 26, 2026 final-round report, the AP’s Sunday final report, and the official 3M Open leaderboard, all checked on Monday, July 27, 2026. No pretending I was on-site in Blaine trying to read heart rate through a player’s sunglasses.

For the path into Sunday first, read our Thursday opinion on Koivun’s opening 64, our Friday story on Michael Kim’s 59, our Saturday recap after Koivun’s 61 put him in front, and the broader 3M Open pressure-week column.

Koivun Closed Like the Story Was His To Keep

The AP report says Koivun played a bogey-free final round on a 97-degree afternoon and never really gave the tournament back.

That matters because the easiest version of this story was the one where the rookie blinked once Scheffler started making noise from ahead on the course.

Instead, Koivun kept the card clean and posted 25-under 259, which both the PGA TOUR leaderboard and the AP report list as a new tournament record, beating Lee Hodges’ 24-under 260 from 2023.

That is not a lucky little first win. That is a proper takeover week.

Scheffler Made the Chase Real, Just Not Enough

This was not some empty-field stroll either.

The AP report says Scheffler fired a 63 to get to 22-under, good for solo second and his fourth runner-up finish of the season. That is exactly the kind of Sunday number that usually makes a first-time winner sweat through every tee shot on the back nine.

Koivun just never really cracked.

And that is why the result lands harder than the simple “young guy wins weak-field event” summary some people will lazily reach for.

He beat the world’s No. 1 player on a day that player actually went out and posted something.

The Board Behind Them Stayed Crowded

According to the AP report, Hideki Matsuyama, Brian Harman, Chandler Phillips, and Denny McCarthy tied for third at 20-under.

So even after Saturday’s lead, the final round still had enough credible names sitting nearby to make the result feel earned instead of soft.

That is the better detail from this tournament.

Koivun did not steal one because everybody else disappeared. He won while a real leaderboard kept moving behind him.

The Win Changed His Season Immediately

The AP report says the victory was worth $1,584,000 and moved Koivun up 124 spots to 70th in the FedExCup standings, which is the final number currently inside the playoff line with two regular-season events remaining.

That is the kind of one-week swing that explains why late-July PGA TOUR golf still matters even after the majors are done hogging all the oxygen.

Koivun entered the week as a new pro with:

• a missed cut at the John Deere Classic
• a tie for 10th at the ISCO Championship
• and a lot of theoretical upside

He leaves it with a TOUR win, a playoff position, and a much louder professional launch.

This Is the Version of the 3M Open the PGA TOUR Wants

If the TOUR could storyboard the value of weeks like this, it would probably look something like:

• a recent college star
• a bunch of scoring chaos
• Michael Kim throwing down a 59
• and the final-round chase including Scheffler

That does not make the event fake. It makes it useful.

The 3M Open just produced the exact kind of player-development story the schedule is supposed to surface after the major season cools off.

Bottom Line

Jackson Koivun won the 2026 3M Open on Sunday, July 26, according to PGA TOUR coverage, the AP’s final report, and the official leaderboard checked Monday, July 27, finishing at 25-under 259 and beating Scottie Scheffler by three shots.

In his third start as a professional, that is not just a nice breakthrough.

That is one of the loudest player-development statements the PGA TOUR has gotten all summer.

For the follow-up angle, read why this win makes the decision to skip The Open and turn pro look even smarter.