Oscar Sabate Bretos defeated Alexandre Sidorenko 6-4 6-3 in the Umag q32 on clay. The upset overturned the form book — Alexandre Sidorenko came in leading the head-to-head 1–0. Oscar Sabate Bretos claimed a first win over Alexandre Sidorenko in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-01-21 | France F2 | Q64 | hard | Alexandre Sidorenko | 7-6(4) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.