Conchita Martinez defeated Marlene Weingartner 6-2 6-1 in the US Open round of 128 on hard. The upset overturned the form book — Marlene Weingartner came in defending last year's round of 128. Conchita Martinez extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-05-05 | Berlin | R64 | grass | Marlene Weingartner | 6-2 7-5 |
| 2002-04-30 | Hamburg | R32 | clay | Conchita Martinez | 7-6(5) 6-3 |
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 (18 vs 15). ATP, WTA & Challenger.