Jana Novotna defeated Irina Spirlea 6-1 7-5 in the Roland Garros round of 16 on clay. The result followed the form book — Jana Novotna came in leading the head-to-head 5–0, defending last year's round of 32. Jana Novotna extended the head-to-head to 6–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-31 | US Open | R16 | hard | Jana Novotna | 6-3 6-3 |
| 1998-06-22 | Wimbledon | R16 | grass | Jana Novotna | 6-2 6-3 |
| 1998-06-15 | Eastbourne | QF | grass | Jana Novotna | 6-4 7-5 |
| 1998-05-11 | Berlin | QF | grass | Jana Novotna | 6-3 5-7 6-3 |
| 1997-11-17 | WTA Tour Championships | SF | carpet | Jana Novotna | 7-6 6-2 |