Joao Walendowsky defeated Matias Rodolfo Buchhass 4-6 6-4 7-6 in the Argentina F20 round of 32 on clay. The upset overturned the form book — Matias Rodolfo Buchhass came in leading the head-to-head 1–0, but Joao Walendowsky had been the form player, winning 3 of their last 5 on clay. Joao Walendowsky claimed a first win over Matias Rodolfo Buchhass in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-16 | Argentina F19 | Q16 | clay | Matias Rodolfo Buchhass | 3-0 |
Averages over each player's completed matches in the selected window (5 vs 1). 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. Small sample — read as indicative. About