Nathalie Vierin defeated Angelika Roesch 3-6 6-1 6-3 in the Monteroni 25K qualifying round on clay. The upset overturned the form book — Angelika Roesch 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 |
|---|---|---|---|---|---|
| 2008-09-22 | Lecce 25K | R16 | clay | Angelika Roesch | 6-3 6-3 |
| 2005-02-07 | Capriolo 25K | R32 | hard | Nathalie Vierin | 6-1 2-6 6-2 |
| 2002-07-08 | Palermo | R32 | clay | Angelika Roesch | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.