The final lasted for four hours, but at first it looked like it could be a walking victory for the German Alexander Zverev, who convincingly took home the two initial sets.
In the third, the Austrian Thiem managed to come back and the final developed into a thriller in five sets that went to a decisive tiebreak.
The final result is written 6–2, 6–4, 4–6, 3–6, 6–7, where Thiem took home the tibreak with 8–6.
Never before since the US Open in 1968 was opened for professional players has a finalist managed to bring home a 2-0 deficit and win a final.