Stephanie Vongsouthi defeated Margit Ruutel 6-2 6-3 in the Roland Garros qualifying round of 128 on clay. The upset overturned the form book — Margit Ruutel came in leading the head-to-head 1–0. Stephanie Vongsouthi claimed a first win over Margit Ruutel in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-05-21 | Roland Garros | Q128 | clay | Margit Ruutel | 7-5 6-2 |