Florencia Labat defeated Irina Spirlea 6-2 7-5 in the Madrid quarter-final on clay. The upset overturned the form book — Irina Spirlea came in leading the head-to-head 1–0, but Florencia Labat had been the form player, winning 3 of their last 5 on clay. Florencia Labat claimed a first win over Irina Spirlea in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-03-30 | Hilton Head | R32 | clay | Irina Spirlea | 6-7 6-2 6-0 |