Nathalie Tauziat defeated Sandra Cacic 4-6 6-4 6-2 in the Canadian Open round of 64 on hard. The upset overturned the form book — Sandra Cacic came in leading the head-to-head 2–0, but Nathalie Tauziat had been the form player, winning 4 of their last 8 on hard. Nathalie Tauziat claimed a first win over Sandra Cacic in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-11 | Berlin | R64 | grass | Sandra Cacic | 7-5 6-4 |
| 1998-03-05 | Indian Wells | R32 | hard | Sandra Cacic | 1-6 6-2 7-5 |