Roberto Carretero defeated Jens Knippschild 4-6 6-3 6-3 in the Hamburg Masters round of 64 on clay. The upset overturned the form book — Jens Knippschild came in leading the head-to-head 1–0, but Roberto Carretero had been the form player, winning 4 of their last 6 on clay. Roberto Carretero claimed a first win over Jens Knippschild in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-03-05 | Spain 2 Masters 4 | R16 | clay | Jens Knippschild | 6-4 1-6 7-6 |
Averages over each player's completed matches in the selected window (22 vs 112). 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. About