Dirk Dier defeated Marc Kevin Goellner 6-0 6-4 in the Germany 3 Masters 1 round of 16 on clay. The upset overturned the form book — Marc Kevin Goellner came in leading the head-to-head 1–0, but Dirk Dier had been the form player, winning 3 of their last 5 on clay. Dirk Dier claimed a first win over Marc Kevin Goellner in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-05-27 | Germany 3 Masters 2 | SF | clay | Marc Kevin Goellner | 4-6 6-4 6-4 |
Averages over each player's completed matches in the selected window (1 vs 123). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About