Richey Reneberg defeated Hernan Gumy 2-6 6-1 6-2 in the Scottsdale round of 16 on hard. The upset overturned the form book — Hernan Gumy came in leading the head-to-head 1–0. Richey Reneberg claimed a first win over Hernan Gumy in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-04-20 | Orlando | R32 | clay | Hernan Gumy | 3-6 6-4 6-0 |
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 (81 vs 123). ATP, WTA & Challenger.