Martin Damm Sr defeated Marcelo Rios 4-6 7-5 7-6 in the Antwerp round of 16 on hard. The upset overturned the form book — Marcelo Rios came in leading the head-to-head 1–0. Martin Damm Sr claimed a first win over Marcelo Rios in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-30 | US Open | R128 | hard | Marcelo Rios | 6-4 7-6(5) 3-6 5-7 6-1 |
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 (157 vs 200). ATP, WTA & Challenger.