Jelena Jankovic defeated Marissa Irvin 6-2 6-4 in the Stanford round of 32 on hard. The upset overturned the form book — Marissa Irvin came in leading the head-to-head 1–0, defending last year's round of 16. Jelena Jankovic claimed a first win over Marissa Irvin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-03-19 | Miami | R128 | hard | Marissa Irvin | 7-6(4) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.