Karol Kucera defeated Hernan Gumy 6-3 6-3 in the New Haven round of 32 on hard. The upset overturned the form book — Hernan Gumy came in leading the head-to-head 1–0, defending last year's round of 64. Karol Kucera claimed a first win over Hernan Gumy in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-09-25 | Davis Cup WG PO: ARG vs SVK | RR | clay | Hernan Gumy | 6-1 6-1 6-4 |
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 (200 vs 75). ATP, WTA & Challenger.