Thomas shows grit to hold off Spieth
US PGA champion Justin Thomas came out on top after a thrilling final-round shootout to win his fifth tournament of the season in the Dell Technologies Championship.
Thomas carded a final round of 66 at TPC Boston to finish 17 under par, three shots clear of Open champion Jordan Spieth in the second of four FedEx Cup play-off events.
The 24-year-old went into the final round in a tie for the lead and carded two birdies and an eagle in a front nine of 32, but remarkably still lost ground to playing partner Marc Leishman.
Leishman birdied the first, second, fourth, fifth, seventh and ninth to race to the turn in 30.
Spieth had started birdie-eagle-birdie-birdie to bring back memories of the four-hole stretch he played in five under par during the final round at Royal Birkdale.
Leishman took a two-shot lead into the back nine, but the Australian carded a hat-trick of bogeys from the 10th.
Thomas and Spieth were also not immune to mistakes on the tougher back nine, but it was Thomas who responded best to a bogey on the 11th with birdies on the 13th and 15th.
Spieth's bogey on the 14th left him two shots adrift of his friend and another dropped shot on the last allowed Thomas to enjoy a relaxed finish.
Leishman finished a shot further back in third after bogeys on the last two holes completed a back nine of 40.