J.B. Holmes hits his second shot on the third hole during first round play at the Genesis Open golf tournament at Riviera Country Club on Friday. The rain-delayed round was finally completed with Holmes holding a one-stroke lead.

LOS ANGELES — In a round where Tiger Woods kept missing short putts, J.B. Holmes took the lead because of a tee shot that needed no putting at all.

Holmes made a hole-in-one with an 8-iron on the par-3 sixth hole, followed with a birdie and wound up with an 8-under 63 for a one-shot lead over Jordan Spieth when the first round finally ended Friday.

“It was awesome to see that,” Holmes said about his ace.

The ball landed well behind the pin on the left side of the bunker and spun back some 20 feet on the rain-soaked greens of Riviera.

“Hit it exactly how I wanted it and it went in,” Holmes said. “It looked good the whole time.”

Spieth first was set to tee off at 7:22 a.m. Thursday until the round was scrapped after his opening tee shot on No. 10 and eventually began anew seven hours later because of the rain.

He played six holes Friday morning to complete a bogey-free round of 64.

Woods didn’t start his 10th appearance at Riviera as a pro until Friday morning, and while he got off to a rough start with a pair of three-putt bogeys, he answered with four straight birdies around the turn.

But then he three-putted from long range on the 12th. The real blow was on the par-5 17th, where he missed a 20-foot birdie putt and then his 30-inch par putt missed the hole.

All four bogeys were from three-putts.

“I hit it well and putted awful,” Woods said. “Four three-putts is ridiculous.”

Justin Thomas and Adam Scott, whose lone victory at Riviera came in 2005 over 36 holes because of the rain, were in the group at 66.