Major championships are won under intense pressure inside the ropes, but their foundation is built on the range. Wyndham Clark’s victory at the 2026 U.S. Open showcased four days of exceptional ball-striking and composure — and was the result of a key swing change that began long before he arrived at Shinnecock Hills.

A key part of that success came from his work with swing coach and GOLF Top 100 Teacher Pat Coyner. Together, they focused on making Clark’s motion more repeatable, starting with his wrist angles, which improved his ability to control the clubface. According to Coyner, one training aid became integral to their work: the ProSENDR.

“Priority No. 1 has been establishing better wrist angles for Wyndham,” Coyner says. “The ProSENDR has been a huge part of this.”

Why do wrist angles matter? Because the position of the lead wrist significantly influences the clubface, affecting where the ball starts and how the club is delivered at impact.

“The ProSENDR is a great reminder because it limits how much radial deviation he can get at the top,” Coyner says. “It really helped combat any tendency to get his lead wrist extended at the top.”

In simple terms, the goal is to help Clark reach the top of his backswing with less extension in his lead wrist. From there, Clark’s improved wrist position helps him deliver a more consistent clubface angle, which makes it easier to shallow the club in transition and avoid compensations that lead to inconsistent contact. 

“Better wrist angles create a better clubface position, and then the width on the downswing shallows his attack and allows him to pivot properly through impact,” Coyner says.

What makes the ProSENDR so valuable, Coyner explains, is not that it forces a golfer into a perfect position. It’s that it provides feedback while still requiring the player to make the change.

“The best thing about it is Wyndham still has to do the work,” he says, “Some training aids lock you into place, but it doesn’t really translate because the player doesn’t have to do the work. With the ProSENDR, the player has to get themself into the correct position.”

That distinction is important. The best training aids don’t create better swings for golfers. Rather, they help golfers understand what a better swing feels like.

For Clark, that feedback became part of his daily routine — and helped build a swing that held up under major championship pressure.