After two hours of play on Court Suzanne-Lenglen – Thiem on his favourite playing stage in the world and introducing a new racquet designed to accentuate his control of the ball - faced a score that stood finely, frustratingly balanced at 6-4, 4-6, 6-6.
It was an inspired Paul who relentlessly took a tactically astute game to the Austrian, beautifully setting up points to effect a run of entertaining winners. In his toile-inspired Nike kit, Paul looked in the spirit to make his mark with Gallic flair.
With a 4-0 lead in the tiebreak, the American truly looked on course for an upset, but a prolonged Mexican wave at 4-2, when he was due to serve, proved to be an unsettling turning point. He lost the next three points and Thiem eventually served for a two-sets-to-one lead. "That was a key moment," agreed Thiem. The fourth set was a formality.
Experience won out. Junior status is never a reliable indicator of a player’s future career trajectory, and while Thiem has been seeded at every major he has contested since Wimbledon in 2015, Paul was making only his third career Grand Slam appearance, having fallen at the first hurdle in two previous outings (at the US Open in 2015 and as a wildcard in 2017).
In the decider, Thiem looked more like the player who has made back-to-back semi-finals here in 2016 and 2017 before breaking through to the final last year.