Adrian Voinea defeated David Prinosil 6-4 6-3 in the Hamburg round of 64 on clay. The upset overturned the form book — David Prinosil came in defending last year's round of 32. Adrian Voinea extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-03 | Hamburg Masters | R64 | clay | Adrian Voinea | 6-3 6-2 |
| 1999-01-04 | Adelaide | R32 | hard | David Prinosil | 7-6 4-6 6-2 |
Averages over each player's completed matches in the selected window (200 vs 200). 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