Lizzy Jelfs defeated Helen Crook 6-4 4-6 6-3 in the Ilkley 10K round of 32 on grass. The upset overturned the form book — Helen Crook came in leading the head-to-head 1–0. Lizzy Jelfs claimed a first win over Helen Crook in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-07-07 | Felixstowe 10K | R32 | grass | Helen Crook | 6-2 6-4 |