Ashutosh Singh defeated N Vijay Sundar Prashanth 6-7 6-4 6-2 in the Indonesia 1 4 round of 32 on hard. The upset overturned the form book — N Vijay Sundar Prashanth came in leading the head-to-head 2–0. Ashutosh Singh claimed a first win over N Vijay Sundar Prashanth in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-08-02 | Thailand F1 | R32 | hard | N Vijay Sundar Prashanth | 6-1 7-5 |
| 2009-08-17 | India F7 | R16 | hard | N Vijay Sundar Prashanth | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.