Mariano Puerta defeated Albert Costa 6-4 6-3 in the Gstaad semi-final on clay. Mariano Puerta extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-04 | Palermo | R16 | clay | Albert Costa | 6-2 3-6 6-4 |
| 1999-08-23 | Long Island | R32 | hard | Mariano Puerta | 6-4 6-1 |
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 (161 vs 200). ATP, WTA & Challenger.