Magdalena Grzybowska defeated Katarina Studenikova 6-0 6-1 in the US Open round of 128 on hard. The upset overturned the form book — Katarina Studenikova came in leading the head-to-head 1–0, defending last year's round of 128. Magdalena Grzybowska claimed a first win over Katarina Studenikova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-07-21 | Warsaw | R32 | clay | Katarina Studenikova | 6-3 6-2 |