David Prinosil defeated Sascha Nensel 7-5 6-1 in the Hamburg round of 64 on clay. The result followed the form book — David Prinosil came in leading the head-to-head 1–0. David Prinosil extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-04-14 | Germany 2 Masters 4 | R16 | clay | David Prinosil | 7-5 3-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.