Carlos Costa defeated Nicolas Lapentti 2-6 7-6 7-6 in the Prague round of 32 on clay. The upset overturned the form book — Nicolas Lapentti came in leading the head-to-head 4–0. Carlos Costa claimed a first win over Nicolas Lapentti in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-09 | Santiago | R32 | clay | Nicolas Lapentti | 4-6 6-3 6-3 |
| 1998-08-24 | Boston | R32 | hard | Nicolas Lapentti | 6-7(8) 6-4 7-5 |
| 1997-10-27 | Bogota | QF | hard | Nicolas Lapentti | 7-5 4-6 6-3 |
| 1997-06-09 | Bologna | R32 | clay | Nicolas Lapentti | 6-4 3-1 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 (98 vs 200). ATP, WTA & Challenger.