An already bad round for Justin Thomas ended with a nightmare on the 18th hole on Thursday.

Thomas shot a 9 on the par-5 18 and finished with an opening round of 82 at The Open Championship.

The two-time Grand Slam winner entered the final hole of the first round already 7-over, having three-putted on the par-3 17th. But nothing in the first 17 holes came close to what he did on the 18th.

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Justin Thomas of the United States plays his shot from the bunker on the 18th hole during the 151 Open at Royal Liverpool Golf Club on July 20, 2023, in Hoylake, England. (Oisin Keniry/R&A/R&A via Getty Images)

His tee shot went out of bounds, so he was hitting three from the tee box. His fourth shot ended up in a greenside bunker, and this is where the real trouble began.

He had no angle to go up and down, so he aimed off the green. Despite a hard hit on the trap, she hit it too hard and ended up in the other greenside sand.

Once again, Thomas didn’t have any shots to get to the green with his lie, so he actually hit his sixth shot back and into some thick material. Thomas was finally on the green in seven.

justin thomas

Justin Thomas of the United States reacts on the 14th hole during the 151 Open at Royal Liverpool Golf Club on July 20, 2023, in Hoylake, England. (Gregory Shamus/Getty Images)

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Thomas had about 12 feet to save a triple bogey, and of course his putt fell short. After the tap in, he went down like a quad bogey.

His day even started badly, as he hit a bunker off the green on the first hole.

By the time he entered the clubhouse, Thomas was tied for 154th on the day with only one player behind him on the leaderboard: Taichi Kho, who shot 12 on 83.

Thomas has struggled at every major this year. He missed the cut at both the Masters and the US Open, finishing tied for 65th in the PGA Championship. He has more rounds in the 80s (two) in majors this year than cuts, with his last major round being 81 at Los Angeles Country Club last month.

Justin Thomas getting out of the trap

Justin Thomas tees off from a bunker on the 18th green on day one of the British Open at Royal Liverpool Golf Club in Hoylake, England on Thursday, July 20, 2023. (AP Photo/Kin Cheung)

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England’s Tommy Fleetwood is tied for the lead at five-under on home soil at Royal Liverpool with Emiliano Grillo and fan Christo Lamprecht.