Alexander Volkov defeated Daniel Vacek 3-6 7-5 6-1 in the Long Island round of 32 on hard. The upset overturned the form book — Daniel Vacek came in leading the head-to-head 3–0. Alexander Volkov claimed a first win over Daniel Vacek in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-04-07 | Hong Kong | R32 | hard | Daniel Vacek | 6-4 7-6 |
| 1995-11-06 | Moscow | QF | hard | Daniel Vacek | 6-2 6-3 |
| 1995-09-25 | Basel | R32 | hard | Daniel Vacek | 7-5 6-2 |
Averages over each player's completed matches in the selected window (20 vs 180). 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. About