When Joel Dahmen eagled the par-4 14th on Friday at the Wells Fargo Championship, he held the outright lead at 9 under. When Dahmen signed his scorecard at round's end, he was at 1 under par and nine shots back.
Dahmen, beginning on the back nine at TPC Potomac, drove the green at the 278-yard 14th and converted an 8-foot putt for eagle.
He remained at 9 under par, and in the top spot, over his next three holes, before a disastrous stretch sent him tumbling down the leaderboard.
Dahmen bogeyed the 18th and first holes.