Woods also bogeyed Nos. 12, 13, 16 and 17.
When he birdied the 535-yard second hole as Woods bogeyed, May suddenly led by a stroke.
Woods bogeyed the final two holes and finished with a 70.
Woods bogeyed No. 13 when he failed to get up and down from a bunker, cutting his lead to 1 up.
Woods also bogeyed the first to start his back nine as he closed the front, losing six shots in the space of five holes.
When Woods bogeyed No. 18 on Saturday, curling in a 7-foot putt, their date was official.
But Woods bogeyed the 12th hole when his approach shot found a greenside bunker and he could not get up and down for par.
Woods bogeyed No. 14 with a three-putt, missing the second putt from 2 1/2 feet.
Then, atypically, Woods bogeyed the 17th hole to bring some drama back into the tournament.
It appeared that it might even turn out to be one, after Woods bogeyed the first two holes and his four-stroke lead was cut in half.