Gustavo Kuerten defeated Carlos Costa 6-2 6-4 in the Stuttgart Outdoor round of 16 on clay. The result followed the form book — Gustavo Kuerten came in defending last year's round of 16. Gustavo Kuerten extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-11 | Rome Masters | R64 | clay | Gustavo Kuerten | 1-6 6-4 6-2 |
| 1998-04-13 | Barcelona | R32 | clay | Carlos Costa | 6-4 6-3 |
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.