Jim Furyk birdied both playoff holes on Sunday to defeat Kevin Kisner and win the Heritage.
Furyk fired an 8-under 63 in the final round to post 18-under-par 266. Kisner, who was in the final group, two groups behind Furyk, birdied the final hole of regulation to force the extra session. Kisner closed with a 7-under 64.
The duo returned to the 18th at Harbour Town Golf Links for the first extra hole. Both players found the fairway off the tee and Furyk dropped his approach just inside eight feet.
Kisner answered by knocking his second shot to 17 feet, then poured in his birdie effort to put the pressure on. Furyk answered as he drained his birdie chance to extend the extra session.
They headed to the par-3 17th, and both players found the green with their tee shots. Kisner's 22-footer for birdie failed to find the cup and he tapped in for par.
Furyk didn't miss. He converted his 12-foot birdie putt for his 17th PGA Tour title and first since the 2010 Tour Championship. Though he trailed entering the final round, Furyk had blown nine 54-hole leads since his last victory.
Troy Merritt, who led after the second and third rounds, posted a 2-under 69 and ended alone in third at 16-under-par 268. Brendon Todd carded a 4-under 67 to grab fourth place at minus-15.
Last year's winner, Matt Kuchar, was one shot back at 14-under-par 270 after a 3-under 68. Sean O'Hair, who lost in a playoff to Jordan Spieth at the Valspar Championship, shot 7-under 64 to end alone in sixth at minus-13.
Masters champion Spieth closed with a 1-under 70 and ended in a tie for 11th at 10-under-par 274.
The final round was played early to beat storms that were forecast for late afternoon. Part of the final round was played through rain, but there were no stoppages.