Arantxa Parra Santonja defeated Marlene Weingartner 6-2 7-6 in the US Open round of 128 on hard. The upset overturned the form book — Marlene Weingartner came in leading the head-to-head 1–0, defending last year's round of 128. Arantxa Parra Santonja claimed a first win over Marlene Weingartner in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-01-05 | Auckland | R32 | hard | Marlene Weingartner | 6-2 7-5 |
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 (88 vs 9). ATP, WTA & Challenger.