Patty Tavatanakit delivered the birdie putts and Jake Knapp kept their UCLA team in front with one big par save after another, leading them to a 6-under 66 in the more difficult foursomes Saturday and a two-shot lead in the Grant Thornton Invitational. Tavatanakit holed a pair of 12-footers late on the front nine at Tiburon Golf Club. When their games got off track, Knapp made a series of testy par putts that kept the momentum going.