Hernan Gumy defeated Daniel Vacek 6-0 6-4 in the Munich round of 32 on clay. The result followed the form book — Hernan Gumy came in leading the head-to-head 1–0. Hernan Gumy extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-17 | New Haven | R64 | hard | Hernan Gumy | 5-3 RET |
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 (30 vs 27). ATP, WTA & Challenger.