PLAINFIELD, N.J. — When college-bound teens Will Hartman and Tyler Mawhinney teed it up at the 2025 U.S. Amateur Four-Ball Championship, few expected them to overpower one of the strongest mid-amateur fields the USGA has ever assembled. But round after round, the pair proved they were more than just promising prospects—they were championship-caliber finishers.

On Wednesday afternoon at Plainfield Country Club, Hartman and Mawhinney clinched the national title with a 3-and-1 victory over mid-am standouts Evan Beck and Dan Walters, capping a marathon week that included a 23-hole thriller and a near-flawless final.

“We’re a good team and we’re going to be hard to beat,” Hartman said earlier in the week. He was right.

Clutch from the Start

Their path to the final was anything but easy. In the Round of 16, the pair outlasted Arora and Cui in what became the longest match in championship history—23 holes, sealed with a near-ace on the 5th extra hole.

In the semifinals, they overwhelmed Looney and Powell with early birdies and won 3 and 1, setting up the generational final: two collegiate stars vs. two seasoned Mid-Am champs.

Championship Pedigree

• Will Hartman (Marvin, NC) is a two-time Bobby Chapman Invitational champion and currently ranked No. 12 in the Rolex AJGA Rankings. He’s committed to Vanderbilt University and was a semifinalist at the 2023 U.S. Junior Amateur.
• Tyler Mawhinney (Fleming Island, FL), also a Vanderbilt commit, is ranked No. 15 in the AJGA and won the 2024 Canadian Men’s Amateur. He’s a member of the U.S. National Junior Development Program and finished T2 at the 2025 Dustin Johnson World Junior Championship.

What makes them special isn’t just talent—it’s chemistry. The duo bonded through national junior team camps and elevated each other’s game when it mattered most.

“Those [USNDP] experiences definitely helped me prepare for this kind of pressure,” Mawhinney said. “We trust each other, and that made all the difference.”

The Final Battle

In the final, the match was tight through five holes. Then Hartman and Mawhinney took control—going 2 up through 10 and closing out the match with confident ball-striking and a par at the 17th to win 3 and 1.

Their Moment — And What Comes Next

This victory marks a high point in both players' junior careers—and a sign of what’s to come at the collegiate and national levels. With Hartman set to join Vanderbilt this fall and Mawhinney following in 2026, they’re poised to keep turning heads well beyond Plainfield.

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