Andrei Cherkasov defeated Daniel Vacek 6-3 7-6 in the Tokyo round of 64 on hard. The upset overturned the form book — Daniel Vacek came in leading the head-to-head 1–0, but Andrei Cherkasov had been the form player, winning 1 of their last 5 on hard. Andrei Cherkasov claimed a first win over Daniel Vacek in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-07-26 | Kitzbuhel | R32 | clay | Daniel Vacek | 6-3 0-6 7-5 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (27 vs 181). ATP, WTA & Challenger.