Bill Haisten
Tulsa World Sports Columnist
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OWASSO — Occasionally, there is the perfect marriage of a player’s game and a golf course.
For the rest of his career and life, Adrien Dumont de Chassart will have fond memories of The Patriot Golf Club course.
Having done during his final round what he did all week, the 25-year-old Belgian and former Illinois Fighting Illini player was the statement-making, record-breaking winner of the Korn Ferry Tour’s Compliance Solutions Championship.
On the par-71 Patriot course, there was from Dumont de Chassart a first-round 61, a second-round 61, a Saturday 64 and more routine brilliance during Sunday’s championship round: a 6-under-par 65.
At 33-under over 72 holes, Dumont de Chassart set a Korn Ferry record for the lowest tournament score relative to par. The previous record of 31-under had been established by Tim Widing during the 2024 Veritex Bank Championship at the Texas Rangers Golf Club in Arlington.
Dumont de Chassart arrived at 33-under by sinking Sunday birdie putts on the 15th, 16th and 17th holes. After rolling in a nine-foot par putt on 18, he was given the Compliance Solutions Championship trophy, a cowboy hat and $270,000 (from an overall tournament purse of $1.5 million).
The Korn Ferry Tour is development-level golf for players striving to play their way onto the PGA Tour roster.
For Dumont de Chassart, mission accomplished. He will be on the big tour next year. As he savored a career-best week of golf, he got a kiss from his girlfriend Katie Underwood, the daughter of former Oklahoma State/current Illinois basketball coach Brad Underwood (who was on The Patriot property to watch the final round).
Dumont de Chassart prevailed by seven shots over Zechong Dou and by eight over Marcelo Rozo, James Nicholas, Alistair Nicholas and Peter Kuest.
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The 2026 and 2027 Compliance Solutions tournaments also will be played at The Patriot, so this event will become a significant piece in the Tulsa area’s history of professional golf.
In major championships at Southern Hills, Tommy Bolt (1958 U.S. Open), Hubert Green (1977 U.S. Open), Raymond Floyd (1982 PGA Championship) and Nick Price (1994 PGA Championship) were wire-to-wire leaders and winners.
Dumont de Chassart wasn’t quite on that level of start-to-finish control, but he was close. His 72-hole total: 32 birdies and only three bogeys.
In three of his previous four Korn Ferry events before traveling to Oklahoma, Dumont de Chassart missed the cut.
The Compliance Solutions Championship began in a splashy manner — with Davis Chatfield converting on a 30-foot, final-hole birdie putt for an opening-round 59. In most events, there’s a nice scoreboard cushion for a player who opens with a stunning score like a 59.
Unfortunately for Chatfield, low scores would be remarkably common at The Patriot. While he shot 59 on Thursday, there were 22 others who opened with a result no worse than a 64. Dumont de Chassart trailed by only two strokes.
By the time Chatfield’s second round began on Friday afternoon, Dumont de Chassart had completed his morning round with another 61. When Chatfield started his second round, he trailed Dumont de Chassart by eight shots.
Now at sixth in the Korn Ferry Tour’s points list, Dumont de Chassart takes great momentum to the final event of the season: next week’s Korn Ferry Tour Championship in French Lick, Indiana.
At the end of that tournament, the top 20 players on the points list will have secured their PGA Tour card for 2026. Dumont de Chassart’s ticket already has been punched.
While he may never play another Korn Ferry tournament, Dumont de Chassart will never forget his 33-under-par experience at The Patriot Golf Club.
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Bill Haisten
Tulsa World Sports Columnist
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