The highlight was a 60-foot chip-in for birdie on the 12th, with Austin tugging on his ear to get the crowd to pump it up.
"I was trying to get them to go crazy for someone else, so he'd know there's someone else out here," Austin said. "There's no roar like his. It was nice to hear the loudest one I've ever heard for me."
But it wasn't enough.
After his three-putt bogey on the 14th, Woods hit every fairway and every green the rest of the way. Woods' final stroke was a 3-foot par on the 18th hole, and he took his time. In the last major at Southern Hills, Retief Goosen three-putted from 12 feet that forced him to win the U.S. Open the following day in a playoff.
Woods removed the ball from the cup and stuck it in his pocket, then removed his cap and thrust both arms in the air as sweat poured down his face from a fourth straight day with temperatures topping 100.
He won for the fifth time this year no one else has won more than twice and for the second straight week, coming off an eight-shot victory in the Bridgestone Invitational at Firestone.
Stephen Ames, who played in the final group with Woods, made bogey on the first two holes and wound up with a 76.
Arron Oberholser settled down after a bogey-bogey start for a 69 that gave him a tie for fourth at 1-under 279 and secured a spot in the Masters next year. John Senden shot 71 and also finished at 279.
Els said if had been watching from home, he would have bet the house on Woods winning his 13th major. Inside the ropes, the Big Easy played as though he had an ace up his sleeve. Birdies on two of the first five holes at least got his name on the leaderboard, and Els kept plugging away with another birdie on the eighth that briefly drew him to within two shots.