Kumiko Iijima defeated Yi Fan Xu 4-6 6-4 6-4 in the Ho Chi Minh City 25K round of 32 on hard. The upset overturned the form book — Yi Fan Xu came in leading the head-to-head 1–0, but Kumiko Iijima had been the form player, winning 3 of their last 6 on hard. Kumiko Iijima claimed a first win over Yi Fan Xu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-06-04 | Changsha 25K | R16 | hard | Yi Fan Xu | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.