Hugo Grenier defeated Jan Choinski 7-5 6-2 in the Rotterdam qualifying round of 16 on hard. The upset overturned the form book — Jan Choinski came in ranked #91, leading the head-to-head 2–1, but Hugo Grenier had been the form player, winning 2 of their last 4 on hard. That levelled the head-to-head at 2–2.
Grenier H. took it in straight sets.
Hard: level 1–1 · Grass: Grenier H. leads 1–0 · Carpet: Choinski J. leads 1–0
Hugo Grenier beat Jan Choinski 7-5 6-2. Umpiry, "Hugo Grenier vs Jan Choinski — Rotterdam Qualifying Round of 16", https://umpiry.com/match/2026-02-07/choinski-vs-grenier-rotterdam-q16?utm_source=cite (as of 7 February 2026).