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SAN FRANCISCO — At this stage of Tiger Woods’s career, unpredictability is as sure a bet as a red shirt on Sunday.
Concerns about loosening his surgically repaired back linger over his every appearance. The much-discussed summer fog and cool air at T.P.C. Harding Park constantly threaten Woods’s ability to function without pain or fatigue. In the past few years, he’s changed golf club manufacturers, his brand of golf ball and, this week, even his putter. He wore a neck gaiter Thursday, a sign of the pandemic times.
A laborious Friday round of two-over 72 put Woods at even par for the P.