Johannes Haerteis defeated Otto Virtanen 6-4 4-6 6-4 in the M25 Trimbach 1 quarter-final on carpet. The upset overturned the form book — Otto Virtanen came in leading the head-to-head 1–0. Johannes Haerteis claimed a first win over Otto Virtanen in two meetings, levelling the head-to-head at 1–1.
Haerteis J. came through in three sets.
Carpet: Haerteis J. leads 1–0 · Hard: Virtanen O. leads 1–0
Johannes Haerteis beat Otto Virtanen 6-4 4-6 6-4. Umpiry, "Johannes Haerteis vs Otto Virtanen — M25 Trimbach 1 Quarter-final", https://umpiry.com/match/2022-03-18/haerteis-vs-virtanen-m25-trimbach-1-qf?utm_source=cite (as of 18 March 2022).