Adam Chadaj defeated Andrei Mlendea 1-6 6-3 6-3 in the Turkey F12 round of 32 on hard. The upset overturned the form book — Andrei Mlendea came in leading the head-to-head 1–0. Adam Chadaj claimed a first win over Andrei Mlendea in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-07-04 | Germany F8 | QF | clay | Andrei Mlendea | 0-6 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.