Angela Haynes defeated Mariana Diaz Oliva 6-3 7-6 in the Miami round of 128 on hard. The upset overturned the form book — Mariana Diaz Oliva came in leading the head-to-head 1–0, defending last year's round of 64. Angela Haynes claimed a first win over Mariana Diaz Oliva in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-18 | Cary NC 50K | R16 | hard | Mariana Diaz Oliva | 6-3 6-1 |
Averages over each player's completed matches in the selected window (16 vs 19). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About