U.S. Open Day 1 Recap: How Former Illinois Golfers Fared

The 125th U.S. Open teed off on Thursday at Oakmont Country Club in Pittsburgh, and Illinois golf fans had several familiar faces to follow. Three former Illini – Thomas Detry, Jackson Buchanan and Brian Campbell – began their major championship pursuit at one of the toughest golf courses in the world.
The day's first birdie on the uphill, 463-yard 9th hole is made by... ?
— U.S. Open (@usopengolf) June 12, 2025
Thomas Detry! 🇧🇪 👏 pic.twitter.com/2FeVeo04tH
Detry, who notched his first PGA Tour win earlier this season, came out firing. The Belgian carded a 32 (3-under) on the front nine, setting himself up nicely before giving two shots back on the back nine. He finished with a solid 69 (1-under), a strong score by U.S. Open standards, leaving him just three strokes off the lead and well within striking distance heading into Friday.
Jackson Buchanan's first hole this morning was a true U.S. Open at Oakmont experience.
— Matthew Stevens (@matthewcstevens) June 12, 2025
He hit his 299-yard drive so far left on No. 10 he had to hack out of the deep rough into the fairway...of No. 11.
He then hit a 165-yard approach to 17 feet and made that putt for par. https://t.co/PoiDl4jaMg pic.twitter.com/jcNCDd0fpu
Buchanan, fresh off a standout career at Illinois and having just turned pro, also got off to a quick start with a birdie on No. 2. But Oakmont’s punishing layout soon made its presence felt. The Georgia native ground through the rest of the round, making several tough pars on his way to a 74 (4-over). Although finishing over par for Round 1, Buchanan found himself in good company – tied with the likes of Rory McIlroy and Phil Mickelson.
Campbell had the roughest start of the three, bogeying his opening hole and never quite settling in. The 32-year-old posted a 79 (9-over), struggling to navigate Oakmont’s lightning-fast greens and deep rough. He’ll need a bounce-back performance Friday to have any chance to play into the weekend.
When the U.S. Open was last held at Oakmont in 2016, the cut line sat at 6-over. That number was still within reach for all three Illini going into Friday's second round.