Andrey Kumantsov defeated Artem Sitak 6-1 6-2 in the USA F5 round of 32 on hard. The upset overturned the form book — Artem Sitak came in leading the head-to-head 1–0, but Andrey Kumantsov had been the form player, winning 2 of their last 5 on hard. Andrey Kumantsov claimed a first win over Artem Sitak in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-02-18 | USA F4 | QF | hard | Artem Sitak | 6-2 4-6 6-4 |
Averages over each player's completed matches in the selected window (2 vs 7). 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