Lavinia Tananta defeated Sandy Gumulya 6-3 6-1 in the Nonthaburi 10K semi-final on hard. The upset overturned the form book — Sandy Gumulya came in leading the head-to-head 3–1. Lavinia Tananta narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-22 | Traralgon 25K | R16 | hard | Sandy Gumulya | 7-5 6-2 |
| 2006-11-06 | Jakarta 25K | R32 | hard | Sandy Gumulya | 6-2 6-1 |
| 2006-06-19 | New Delhi 6 10K | QF | hard | Lavinia Tananta | 2-6 6-2 6-2 |
| 2003-09-29 | Jakarta 10K | R32 | hard | Sandy Gumulya | 6-0 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.