Furyk, the 2010 champion, was among 65 golfers who hadn't finished Friday before play was halted due to heavy rains. He stood at 5-under 137 after posting the round's best score. The three are two shots ahead of a group of 11 that includes Masters contender Matt Kuchar and former world No. 1 Luke Donald.
Martin also had his round delayed by Friday's rain and shot a 68 while Choi finished Friday.