Nicolas Lapentti defeated Carlos Costa 4-6 6-3 6-3 in the Santiago round of 32 on clay. The result followed the form book — Nicolas Lapentti came in leading the head-to-head 3–1, defending last year's round of 32. Nicolas Lapentti extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 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 |
| 1997-04-28 | Prague | R32 | clay | Carlos Costa | 2-6 7-6(3) 7-6(4) |
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 (200 vs 55). ATP, WTA & Challenger.