Golfer Mark Hubbard delivered a hole-in-one in the first round of the Rocket Mortgage Classic, but in an ace that he was sure he had missed once he struck it with his club.

Hubbard was coming into the 11th hole at one-under par on Thursday on the North Course at the Detroit Country Club.

He had delivered a hole-in-one eight times heading into the event, but this strike he wasn't confident about. Hubbard even deliberately dropped his club once he sent the ball sailing toward the green, according to the PGA Tour's website. 

Mark Hubbard playing golf

Mark Hubbard of the United States plays his shot from the 18th tee during the first round of the Rocket Mortgage Classic at Detroit Golf Club on July 28, 2022, in Detroit, Michigan. (Photo by Mike Mulholland/Getty Images)

"That's embarrassing," Hubbard said as he turned to his caddie.

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But as Hubbard turned around, he realized the ball was headed directly for the pin.

"Dude, that better not go in," Wyndham Clark, one of Hubbard’s playing partners, said as he watched the ball.

Hubbard had made a hole-in-one in a result that caught him by surprise.

One playing partner told Hubbard he wouldn't give him a high five. Another jokingly said, "It doesn't count. You can't drop your club."

Hubbard spoke to reporters about the hole-in-one after his round of 68.

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Mark Hubbard playing at the Barracuda Championship gold tournament

Mark Hubbard of the United States plays his shot from the 14th tee during the final round of the Barracuda Championship at Tahoe Mountain Club on July 17, 2022, in Truckee, California. (Photo by Sam Greenwood/Getty Images)

"I mean, honestly, it was pretty embarrassing," Hubbard said. "Didn't quite know where the ball was going today. Taking a week off and whatever I just didn't feel as spot on, and I think I let go of the club on about three of the last four shots as well, and they all ended up OK."

"I just felt really stuck, and I thought it was going to be way right of the green," he continued. "I looked up, and it was a perfect one-yard draw … It landed and trickled in like a putt."

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Mark Hubbard putting

Mark Hubbard of the United States putts on the 17th green during the second round of the Rocket Mortgage Classic at Detroit Golf Club on July 29, 2022, in Detroit, Michigan. (Photo by Mike Mulholland/Getty Images)

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Hubbard said this will probably end up being one of his favorite holes-in-one he has ever had.