Diana Ospina defeated Angela Haynes 1-6 6-2 6-4 in the Allentown PA 25K semi-final on hard. The upset overturned the form book — Angela Haynes came in leading the head-to-head 3–0, but Diana Ospina had been the form player, winning 2 of their last 5 on hard. Diana Ospina claimed a first win over Angela Haynes in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-02-18 | Memphis | Q16 | hard | Angela Haynes | 6-1 6-1 |
| 2004-10-11 | Ashburn VA 50K | R32 | hard | Angela Haynes | 6-3 6-4 |
| 2004-02-16 | Memphis | Q16 | hard | Angela Haynes | 6-2 1-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.