Diana Julianto defeated Montinee Tangphong 2-6 6-4 6-2 in the Chennai 10K round of 32 on hard. The upset overturned the form book — Montinee Tangphong came in leading the head-to-head 2–0. Diana Julianto claimed a first win over Montinee Tangphong in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-06 | Jakarta 10K | R16 | hard | Montinee Tangphong | 7-5 7-5 |
| 2003-02-17 | Bangalore 10K | R16 | hard | Montinee Tangphong | 6-1 6-3 |