Natalia Egorova defeated Maaike Koutstaal 6-3 3-6 7-6 in the Sunderland 10K round of 16 on hard. The upset overturned the form book — Maaike Koutstaal came in leading the head-to-head 1–0. Natalia Egorova claimed a first win over Maaike Koutstaal in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-02-03 | Birkenhead 10K | R32 | hard | Maaike Koutstaal | 6-4 6-1 |