Koivun’s 3M Open WITB: Prototype-Heavy Titleist Setup
GolfWRX details Jackson Koivun’s winning WITB from the 2026 3M Open, highlighting a Titleist-centered bag with a GT2 driver (8°) and Fujikura Speeder 661 TR X shaft, a GTS3 Prototype 3-wood (15°) and 5-wood (18°) with Graphite Design Tour AD DI shafts, irons T250, T100, and 620 MB Prototype (5-9) with DI HY 95 X and PX 6.5 shafts, SM11 wedges (46-10F, 50-08F, 54-08M @55, 60-04T @62), a Scotty Cameron Phantom 9.5R Tour Prototype putter, and Titleist Pro V1 balls.
