Jan Mertl defeated Tobias Summerer 6-4 6-3 in the Germany F4 semi-final on clay. The upset overturned the form book — Tobias Summerer came in leading the head-to-head 1–0. Jan Mertl claimed a first win over Tobias Summerer in two meetings, levelling the head-to-head at 1–1.
Mertl J. took it in straight sets.
Clay: Mertl J. leads 1–0 · Carpet: Summerer T. leads 1–0
Jan Mertl beat Tobias Summerer 6-4 6-3. Umpiry, "Jan Mertl vs Tobias Summerer — Germany F4 Semi-final", https://umpiry.com/match/2004-04-19/mertl-vs-summerer-germany-f4-sf?utm_source=cite (as of 19 April 2004).