Kumiko Iijima defeated Noppawan Lertcheewakarn 6-3 6-3 in the Taipei 100K qualifying round on carpet. The upset overturned the form book — Noppawan Lertcheewakarn came in leading the head-to-head 3–0. Kumiko Iijima claimed a first win over Noppawan Lertcheewakarn in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-03-18 | Ipswich 25K | R32 | hard | Noppawan Lertcheewakarn | 6-2 6-2 |
| 2011-06-14 | Wimbledon | Q128 | grass | Noppawan Lertcheewakarn | 6-1 7-5 |
| 2009-03-02 | Sydney 25K | R32 | hard | Noppawan Lertcheewakarn | 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.