Marc Kevin Goellner defeated Dirk Dier 4-6 6-4 6-4 in the Germany 3 Masters 2 semi-final on clay. The upset overturned the form book — Dirk Dier came in leading the head-to-head 1–0. Marc Kevin Goellner claimed a first win over Dirk Dier in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-05-27 | Germany 3 Masters 1 | R16 | clay | Dirk Dier | 6-0 6-4 |
Averages over each player's completed matches in the selected window (123 vs 1). 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