Marc Polmans and Jan Zielinski upset Shanghai’s fifth seeds in a 12–10 Match Tiebreak. The tournament’s doubles report through October 16 recorded their October 13, 2026 win over Julian Cash and Lloyd Glasspool as 7–6(3), 4–6, 12–10.
The deciding Match Tiebreak passed through 8–8, 9–9 and 10–10. At each tie, two consecutive lost points could have ended the match; Polmans and Zielinski instead won the last two. They took both the opening-set tiebreak and the match decider.
The Australian-Polish partnership had debuted in Tokyo the previous week, making Shanghai only its second event. Cash and Glasspool had arrived after winning their third tour-level title of the season together at the Beijing ATP 500.
Polmans and Zielinski’s next opponents were Lucas Miedler and Neil Oberleitner. The Austrians had beaten Austin Krajicek and Nikola Mektic 6–3, 6–4, setting up a quarterfinal between two newly formed partnerships.
