Marc Steger defeated Alexandre Sidorenko 7-6 6-3 in the France F6 round of 32 on clay. The upset overturned the form book — Alexandre Sidorenko came in leading the head-to-head 1–0. Marc Steger claimed a first win over Alexandre Sidorenko in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-10 | France F16 | R16 | hard | Alexandre Sidorenko | 3-6 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.