Adrian Voinea defeated David Prinosil 6-3 6-2 in the Hamburg Masters round of 64 on clay. The upset overturned the form book — David Prinosil came in leading the head-to-head 1–0, defending last year's round of 64. Adrian Voinea claimed a first win over David Prinosil in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-01-04 | Adelaide | R32 | hard | David Prinosil | 7-6(0) 4-6 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (148 vs 120). ATP, WTA & Challenger.