Diana Ospina defeated Milagros Sequera 6-0 6-3 in the Mexico City 10K semi-final on hard. The upset overturned the form book — Milagros Sequera came in leading the head-to-head 2–0. Diana Ospina claimed a first win over Milagros Sequera in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-07-09 | College Park MD 25K | R16 | hard | Milagros Sequera | 5-7 6-4 7-6(3) |
| 2001-04-02 | Juarez 25K | R32 | clay | Milagros Sequera | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.