SAN FRANCISCO — Rory McIlroy ran off three straight birdies to force overtime and outlast an old foe in the Match Play Championship, a performance that could be expected from the No. 1 player in the world.

Everything else at TPC Harding Park provided a wild day even by Match Play standards.

Jordan Spieth looked like he would lose the 15th hole until he chipped in. Lee Westwood looked like he would lose the 16th hole when he chipped in. The match still all square, it was Westwood who delivered the clutch moment with a 6-iron to 12 feet for a birdie that carried him to a 2-up victory and sent the Masters champion home.

Spieth was 15-under par for the 49 holes he played this week, as good as anyone in the field.

It just didn’t work at the Match Play Championship.

“I could have shot 10 over and gone 0-3,” Spieth said, noting that the outcome would have been the same. He’s out.

Jim Furyk played 19 holes to win his match, and then walked another hole as a spectator to see if it meant anything. He became a huge fan of George Coetzee of South Africa, whose victory over Thongchai Jaidee allowed Furyk to win his group and advance to the round of 16.

“Kind of an awkward feeling,” Furyk said.

Branden Grace, Tommy Fleetwood and J.B. Holmes all lost their matches on Wednesday. The previous 16 years, they already would be home now. In the round-robin format, they managed to make it to the weekend.

Grace had the wildest finish. By beating Charley Hoffman, and with Zach Johnson winning his match, they all finished 2-1 and headed to the first hole for a sudden-death playoff. Grace won with a birdie on the third extra hole.

And if all that isn’t enough, Harding Park turned into the MGM Grand.