Daniela Hantuchova defeated Marissa Irvin 7-5 4-6 6-3 in the New Haven round of 16 on hard. The result followed the form book — Daniela Hantuchova came in defending last year's round of 16. Daniela Hantuchova extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-26 | San Diego | R64 | hard | Daniela Hantuchova | 7-6(3) 6-3 |
| 2004-03-10 | Indian Wells | R64 | hard | Marissa Irvin | 6-4 6-7(5) 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.