Juan Albert Viloca Puig defeated Nicolas Kiefer 6-4 6-3 in the Gstaad quarter-final on clay. Juan Albert Viloca Puig extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-07-06 | Gstaad | R32 | clay | Nicolas Kiefer | 0-6 7-5 7-6 |
| 1996-07-22 | Kitzbuhel | QF | clay | Juan Albert Viloca Puig | 7-5 6-4 |
Averages over each player's completed matches in the selected window (88 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