Michael Zheng and Arthur Gea played into a fourth set at the 2026 US Open on 5 September, with the match still unresolved late that evening. Betting markets on set outcomes stayed open past 22:00 GMT, reflecting continued uncertainty over the result.

Zheng, a young American, and Gea entered the tournament drawing interest from tennis and sports betting outlets. The match lasted longer than many forecasters predicted, pushing the contest deep into the evening. At that point, neither player had established dominance.

The prolonged length of the encounter kept bettors engaged throughout the late hours. With no clear favourite emerging, markets continued to shift. The match highlighted that early round clashes can deliver real tension at Grand Slam level.