PONTE VEDRA BEACH, Fla. — For a brief moment in the second round of the Players Championship, dumpy and frumpy replaced lean and mean on the PGA Tour.

But do not let the plummeting scores and the potential for a wild weekend distract from the story of Colt Knost.

He is short; he is chubby; he is unshaven. He is not exactly a marketing firm’s dream.

But if not for a blown 4-foot putt on the final hole Friday, Knost, the very definition of the Sunday municipal golfer, would have set the 18-hole record at T.P.C. Sawgrass’s Stadium Course with a round of 10-under-par 62.

Knost, 30, finished the round only two strokes behind the clubhouse leader Shane Lowry (11 under) and five behind the leader Jason Day (14 under), who was on the 15th hole when play was suspended because of weather. The round had earlier been suspended two hours because of a storm.