Suchanun Viratprasert defeated Montinee Tangphong 6-4 6-1 in the Mount Gambier 25K round of 16 on hard. The upset overturned the form book — Montinee Tangphong came in leading the head-to-head 2–0. Suchanun Viratprasert claimed a first win over Montinee Tangphong in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-22 | Beijing 50K | R16 | hard | Montinee Tangphong | 6-2 3-6 7-6(1) |
| 2003-11-03 | Mumbai 25K | QF | hard | Montinee Tangphong | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.