Bartosz Wojnar defeated Piotr Grynkowski 6-3 6-2 in the Poland F2 q64 on clay. The upset overturned the form book — Piotr Grynkowski came in leading the head-to-head 1–0. Bartosz Wojnar claimed a first win over Piotr Grynkowski in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-13 | Czech Republic F1 | Q64 | clay | Piotr Grynkowski | 4-6 6-3 7-6(5) |
Averages over each player's completed matches in the selected window (18 vs 68). ATP, WTA & Challenger.
wins 46% of points on serve vs Grynkowski P.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About