Ex-Cal Golfers Homa, Morikawa, Michael Kim, Byeong Hun An Shoot Under Par

Four former Cal golfers shot under par in the first round of the Rocket Classic on Thursday, with Collin Morikawa, Max Homa Michael Kim and Byeong Hun An closely bunched after 18 holes.

However, none of those four was among the top 20 on the leaderboard after one round at the Detroit Golf Club.

Two players ranked outside the top 100 golfers in the world -- Kevin Roy and Aldrich Potgieter -- shared the lead after each shot a 10-under-par 62.

Kim had the best score of the former Golden Bears with a 5-under-par 67, An came in at 4-under-par 68, while Morikawa carded a 3-under-par 69 and Homa finished with a 1-under 71.

But Morikawa is the one getting the most attention because he is using his third caddie in a span of less than three months. And his caddie this week is KK Limbhasut, who was Morikawa’s teammate for three years on Cal’s golf team (2016, 2018 and 2019).

Morikawa, who is ranked No. 5 in the world, started his round on the 10th tee, and he finished his first nine holes at 3-under, with a birdie on No. 11 and an eagle-3 on No. 17.

276 yards ▶️ 3 inches.

Collin Morikawa is dialed early @RocketClassic. pic.twitter.com/IyBN2lOfbx
— PGA TOUR (@PGATOUR) June 26, 2025

He was up and down in his second nine, recording three birdies and three bogeys in that span to finish at 3-under.

Kim continued his strong 2025 showing. He began the year ranked No. 155 and is now 55th. And he put himself in contention this week with a bogey-free first round that featured five birdies, including a birdie-3 on his final hole of the day at No. 18.

An, ranked 46th in the world, began his first round on the first tee, and he was heading to an outstanding round with three birdies along with an eagle-2 on No. 13 to put him at 5-under through 13. However, a bogey on the 15th hole left him at 4-under for the day.

Homa had a hot start, getting birdies on the first two holes and three of the first four. But he parred every hole from the seventh to the 18th and will start Friday's second round tied for 109th place.