The man in second spot fought back once again by battling to make bogey, and after the leader fluffed his chip through the fringe, he also dropped a precious shot meaning the lead would only be one heading down the last.
It was now all or nothing for the world number 10, who needed to better DeChambeau’s score on the last to at least force a play-off, and that he did.
The artistry of Cantlay’s putting ability was clear for everyone to see throughout the week at Caves Valley, and the American had time for one more cracker, as he holed his birdie putt from 22-feet to level the scores up after 72 holes, sending the pair back to the 18th tee for a sudden death shoot-out.
As they did in regulation play, the leading two matched each other shot-for-shot in one of the greatest PGA Tour play-offs of all time. After four tied holes, the fifth of the shoot-out epitomised the contest as DeChambeau stuck his tee shot on the par three 17th six-feet from the pin.
However, his playing partner would go one better, flying his effort inside the world number sixes to three feet, meaning they both once again walked away all-square.