Nathalie Vierin defeated Rita Kuti Kis 5-7 6-3 7-6 in the Vaihingen 25K qualifying round on clay. The upset overturned the form book — Rita Kuti Kis came in leading the head-to-head 2–1. Nathalie Vierin narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-02-07 | Capriolo 25K | R16 | hard | Rita Kuti Kis | 7-6(3) 5-7 6-1 |
| 2005-01-24 | Belfort 25K | R32 | hard | Nathalie Vierin | 6-3 6-4 |
| 2004-06-21 | Fontanafredda 25K | R32 | clay | Rita Kuti Kis | 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.