Bartlomiej Dabrowski defeated Helge Koll 7-5 7-5 in the France 1 Masters 3 semi-final on clay. The upset overturned the form book — Helge Koll came in leading the head-to-head 1–0. Bartlomiej Dabrowski claimed a first win over Helge Koll in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-05-19 | Germany 2 Masters 2 | R16 | clay | Helge Koll | 6-4 6-1 |
Averages over each player's completed matches in the selected window (2 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