Dinah Pfizenmaier defeated Katarzyna Piter 6-4 6-2 in the Rotterdam 25K qualifying round on clay. The upset overturned the form book — Katarzyna Piter came in leading the head-to-head 1–0. Dinah Pfizenmaier claimed a first win over Katarzyna Piter in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-02-17 | Rio de Janeiro | R16 | clay | Katarzyna Piter | 5-7 6-3 6-1 |
Averages over each player's completed matches in the selected window (47 vs 155). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About