This year, ACantlay might take home a USGA title rather than Patrick.

The 18-year-old younger brother of the current FedExCup champion, Jack Cantlay, started the U.S. Junior Amateur on Monday at Bandon Dunes with a 5-under 67. His final-nine, 8-under 28 on Bandon's front nine in his opening Round of the 36-hole stroke-play part set a new championship record for the lowest nine-hole score.

29 was the previous high, set in 2014 by Eric Bae and Yuki Moriyama (2018).

Before making a birdie at the par-5 18th hole, Cantlay had a poor start and was four over after eight holes. Luke Powell, a friend and fellow player appeared at that point and inquired about Cantlay's performance.

Turn it around, Powell said after Cantlay had responded.

Cantlay explained, "So, I birdied the opening hole and made many more 3's on that side.

The par-5 third hole on Cantlay's front nine was highlighted with a 45-foot eagle putt. At the par-5 ninth, he finished his record-setting Round with a 30-yard chip-in eagle.

Cantlay remarked, "I believe that is the first time I have broken 30." "I suppose there's a first time for everything. It's simply another game of golf; you can play well or poorly, depending on the situation. I did well today."

On Tuesday at Bandon Trails, the stroke-play co-host, Cantlay, is one shot back of the lead, shared by Harvey Young, Grant Lester, and Erich Fortlage. Match play begins on Wednesday with the top 64 players.

Cantlay, an incoming freshman on the Long Beach State golf team, got ready for his first USGA competition by going to Scotland to watch his older brother compete in The Open at St. Andrews (his other brother, Nick, plays on the PGA Tour Canada, and his sister, Caroline, also played college golf). Jack played a few practice rounds on authentic links courses like Royal Dornoch and Castle Stuart while Patrick tied for seventh, his first primary top-10 finish since 2019.

So far, the thorough planning is paying off as Jack attempts to achieve something Patrick has never done. Patrick, a former No. 1 amateur in the world, played on the 2011 U.S. Walker Cup squad and twice advanced to the semifinals of the U.S. Amateur, losing to Kelly Kraft in the championship match in 2011. In 2009, Patrick, 17 years old, only made it as far as the Round of 32 in the U.S. Junior in 2009.

The youngest Cantlay is not advancing too quickly. He is, after all, a Cantlay.

Every Round of golf is identical, according to Jack. Just attempt to carry out what I accomplished today.