Nuno Marques defeated Petr Korda 4-6 6-4 6-4 in the Washington round of 64 on hard. The upset overturned the form book — Petr Korda came in leading the head-to-head 1–0. Nuno Marques claimed a first win over Petr Korda in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-05-13 | Umag | R16 | clay | Petr Korda | 6-2 6-1 |
Averages over each player's completed matches in the selected window (16 vs 145). 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