With a 24-under-par total of 264, he holds a three-shot lead.
Mickelson started the day with a three-shot lead and ended up winning by that same margin.
When Woods built a three-shot lead, he couldn't hold it.
It increased the three-shot lead over Trevino that he began the day with to four.
Pak took a three-shot lead when she birdied the par-5 13th hole.
Crenshaw followed that birdie with another, from 12 feet, on the 570-yard 12th hole for a three-shot lead.
Craig Parry, who began the day with a three-shot lead, had a 77 that dropped him five shots behind at 145.
But Kite quickly began falling back, although he gained a three-shot lead on the third hole.
It opened up a three-shot lead going into the second and that gave us a nice little cushion to work with.
Starting one shot behind the leaders, Wrenn took a three-shot lead after five holes.