Daniel Michalski defeated Andrew Paulson 6-1 4-6 6-4 in the Prostejov CH qualifying round 1 on clay. The upset overturned the form book — Andrew Paulson came in leading the head-to-head 1–0, but Daniel Michalski had been the form player, winning 9 of their last 9 on clay. Daniel Michalski claimed a first win over Andrew Paulson in two meetings, levelling the head-to-head at 1–1.
Michalski D. came through in three sets.
Daniel Michalski beat Andrew Paulson 6-1 4-6 6-4. Umpiry, "Daniel Michalski vs Andrew Paulson — Prostejov CH Qualifying Round 1", https://umpiry.com/match/2026-05-31/michalski-vs-paulson-prostejov-ch-q1?utm_source=cite (as of 31 May 2026).