Nikola Cacic defeated Stanislav Vovk 6-2 7-6 in the Russia F4 semi-final on hard. The upset overturned the form book — Stanislav Vovk came in leading the head-to-head 1–0, but Nikola Cacic had been the form player, winning 3 of their last 5 on hard. Nikola Cacic claimed a first win over Stanislav Vovk in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-01-17 | Israel F2 | R16 | hard | Stanislav Vovk | 7-6(2) 1-6 6-3 |
Averages over each player's completed matches in the selected window (92 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