Stefan Edberg defeated Daniel Vacek 6-2 6-7 6-4 in the Basel round of 16 on hard. The upset overturned the form book — Daniel Vacek came in leading the head-to-head 1–0, defending last year's round of 32, but Stefan Edberg had been the form player, winning 2 of their last 4 on hard. Stefan Edberg claimed a first win over Daniel Vacek in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-08-16 | New Haven | R32 | hard | Daniel Vacek | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.