Breaking Down Jackson Koivun's Titleist Setup at the 3M Open

A Full Titleist Commitment Pays Off Big

When Jackson Koivun walked off the 18th green at TPC Twin Cities with his first PGA Tour victory, he did so with a bag that reads like a Titleist catalog — and the performance numbers to back up every single club selection. Finishing 25-under and beating Scottie Scheffler? That's a statement. But what caught my attention wasn't just the score; it was how methodically his equipment contributed to a historically dominant week.

Let's break down exactly what Koivun carried and how each piece performed when it mattered most.

The Driver: Titleist GT2

Koivun plays the Titleist GT2 at 8 degrees with a D1 SureFit setting, paired with a Fujikura Speeder 661 TR X shaft. The GT2 is Titleist's more forgiving head in their current driver lineup, designed for players who want stability without sacrificing ball speed.

His week off the tee was solid but not spectacular by tour standards — he ranked 15th in Strokes Gained: Off The Tee at +2.528. What stands out is the consistency: 78.57% fairways hit (44 of 56), good for a tie at 8th place, with a longest drive of 330 yards. TPC Twin Cities rewards accuracy more than distance, and Koivun clearly prioritized finding short grass over chasing extra yards.

The 3-Wood: A Prototype That Delivered

Here's where things get interesting. Koivun carries a Titleist GTS3 prototype at 15 degrees, shafted with a Graphite Design Tour AD DI 8 X. Prototypes always intrigue me because they signal a player either testing something new or dialing in a specific need that production models don't quite address.

Whatever Titleist is cooking with this one, it worked. Koivun played TPC Twin Cities' par 5s in 11-under for the week, including setting up eagles on the 12th and 18th holes during his scorching third-round 61. That fairway wood was clearly doing serious work on the course's reachable par 5s.

The Irons: A Mixed Setup That Makes Sense

Koivun's iron setup is a textbook example of intelligent bag building. He carries a Titleist T250 3-iron with a Graphite Design Tour AD DI HY 95 X shaft — a utility-style iron that offers more forgiveness and launch on those long approach shots. Then he transitions to a Titleist T100 4-iron before switching to Titleist 620 dot Proto irons from 5 through 9, all with Project X 6.5 shafts.

The 620 dot Protos are a classic players iron that tour guys have gravitated toward for years. Paired with the more playable T250 and T100 at the top, this setup gives Koivun maximum control in the scoring irons while maintaining launch and forgiveness where he needs it most.

The results speak for themselves: Koivun led the entire field in Strokes Gained: Approach to Green at +10.004 and hit 84.72% of greens in regulation. That's 61 of 72 greens, good for a tie at third place. When your iron play is that dialed in, you're going to contend. When it's this good, you win by daylight.

The Wedges: Vokey Versatility

Koivun carries four wedges from the Titleist Vokey Design family. He plays SM11 models at 46 degrees (10F grind), 50 degrees (08F grind), and 54 degrees (08M grind, bent to 55 degrees). His 60-degree is a WedgeWorks custom with a Project X IO 6.0 shaft.

The grind choices tell a story: the F grinds offer versatility for full swings and open-face shots, while the M grind on his primary sand wedge gives him more options around the greens. His scrambling was elite at 81.82% (9 of 11, ranked 4th), and he went a perfect 2-for-2 on sand saves.

When you're hitting that many greens, you don't need to scramble often. But when Koivun did miss, he recovered with precision.

Key Takeaways

• Approach play won this tournament. A +10.004 Strokes Gained: Approach figure is absurdly good; that's the foundation of Koivun's 25-under week.
• The prototype 3-wood deserves attention. If Titleist releases the GTS3 in this configuration, expect demand from players who need a versatile, reachable-par-5 weapon.
• Mixed iron setups work. Koivun proves you don't need one model throughout the bag — smart gapping and launch optimization matter more than brand uniformity.
• Consistency over bombs. Koivun won by keeping it in play and attacking flags, not by overpowering the course.