Jordan Spieth posted a solid first round but needs to change his approach at the Cognizant Classic, as so many are taking advantage of scoring.

PALM BEACH GARDENS, Fla. — Jake Knapp was 11 shots worse than his opening round at the Cognizant Classic and still stayed in front, curling in a 15-foot birdie putt on his final hole Friday for a 1-under 70 and a one-shot lead over Matthieu Pavon.