Tiffany Welford defeated Mirielle Dittmann 6-2 7-5 in the Nuriootpa 25K round of 32 on hard. The upset overturned the form book — Mirielle Dittmann came in leading the head-to-head 1–0. Tiffany Welford claimed a first win over Mirielle Dittmann in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-06-16 | Lenzerheide 25K | R32 | clay | Mirielle Dittmann | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.