Brooks Koepka fired a five-under 66 on Friday at the Cognizant Classic—his lowest round since returning to the PGA Tour in January. During his post-round press conference, Koepka revealed that a subtle tweak to his hand position at address was instrumental in jump-starting a putter that had been quiet through the early part of the season.
What didn’t get mentioned was another change—this one involving the golf ball.
Koepka quietly swapped his Srixon Z-Star for a Titleist Pro V1x, the script and side stamp blacked out. Golf Digest confirmed the ball in play was the 2025 version. It’s the kind of detail that can slip past most fans but rarely escapes the notice of gearheads.
The switch is notable for a couple of reasons. Koepka is currently under contract with Srixon for both clubs and ball, making any deviation worth monitoring. And it isn’t the first time he’s made the move. During the 2022 U.S. Open, Koepka transitioned from the Z-Star Diamond into a Pro V1x—the same model he used during a dominant stretch that produced four major titles in two seasons.
While Koepka captured the 2023 PGA Championship with a Z-Star Diamond in the bag, proving he can win with Srixon’s flagship offering, his comfort level with the Pro V1x has deep roots.
Despite a pedestrian opening round this week, Koepka’s Friday surge was fueled primarily by the putter. He gained nearly four strokes on the field on the greens, a dramatic turnaround that aligned with the setup adjustment he described afterward. That was the headline.
But inside the ropes, the ball change registered as another signal that Koepka is still searching for the right blend.
Elite players rarely alter one variable without examining others. Sometimes the change is about measurable performance—launch, spin, peak height. Other times it’s about feel, sound and the confidence that comes from seeing a familiar flight pattern.
When a player of Koepka’s stature makes even a quiet change, it’s logged and dissected. Not because of brand politics, but because equipment shifts often reveal where a player’s head is at competitively.
For a five-time major champion working to find early-season momentum, the calculus is simple: leave no stone unturned.
For Koepka, the equation isn’t complicated. If something feels better and produces results, it stays in the bag. Friday’s 66 doesn’t guarantee the Pro V1x is a long-term move, but it does suggest he’s willing to lean on familiarity while fine-tuning the rest of his game. And at this stage of the season, incremental progress—however it comes—is what matters most.
