| ITF Singapore F3 | 06/07 02:00 | 25 | [384] Verbeek, Sem v Prashanth, N. Vijay Sundar [309] | 2-6,6-7 | |
| ITF Singapore F2 | 06/03 04:00 | 28 | [269] Ramkumar Ramanathan v Prashanth, N. Vijay Sundar [309] | 6-3,6-2 | |
| ITF Singapore F2 | 06/02 02:00 | 27 | [487] Shiga, Masato v Prashanth, N. Vijay Sundar [309] | 0-6,2-6 | |
| ITF Singapore F2 | 06/01 03:00 | 26 | Marc-Andrea Huesler v Prashanth, N. Vijay Sundar | 3-6,2-6 | |
| ITF Singapore F2 | 05/30 07:15 | 25 | Hobbs, Roy v Prashanth, N. Vijay Sundar | 1-6,2-6 | |
| ITF Singapore F1 | 05/26 12:40 | 27 | Prashanth, N. Vijay Sundar v Nam Hoang Ly | 6-7,3-6 | |
| ITF Singapore F1 | 05/26 02:00 | 26 | Prashanth, N. Vijay Sundar v Marc-Andrea Huesler | 2-6,6-3,6-3 | |
| ITF Singapore F1 | 05/25 04:05 | 25 | Prashanth, N. Vijay Sundar v Hung, Jui-Chen | 6-1,6-3 | |
| ITF China F7 | 05/16 02:00 | 25 | Prashanth, N. Vijay Sundar v Shintaro Imai | 6-7,3-6 | |
| ITF India F6 | 03/23 06:30 | 27 | [325] Gunneswaran, Prajnesh v Prashanth, N. Vijay Sundar [283] | 6-2,6-2 | |
| ITF India F6 | 03/22 03:30 | 26 | Chaukulkar, Tejas v Prashanth, N. Vijay Sundar | 6-3,6-7,3-6 | |
| ITF India F6 | 03/20 03:30 | 25 | Chandrasekar, Anirudh v Prashanth, N. Vijay Sundar | 3-6,6-7 | |
| ITF India F5 | 03/16 05:00 | 27 | [342] Gunneswaran, Prajnesh v Prashanth, N. Vijay Sundar [294] | 6-3,6-3 | |
| ITF India F5 | 03/15 04:30 | 26 | Jayaprakash, Mohit Mayur v Prashanth, N. Vijay Sundar | 2-6,3-6 | |
| ITF India F5 | 03/13 06:30 | 25 | Dahiya, Jatin v Prashanth, N. Vijay Sundar | 4-6,5-7 | |
| ITF India F3 | 03/02 05:30 | 27 | Prashanth, N. Vijay Sundar v Vishnu Vardhan | 3-6,7-6,4-6 | |
| ITF India F3 | 03/01 06:05 | 26 | Prashanth, N. Vijay Sundar v Haenle, Pirmin | 6-1,2-6,7-5 | |
| ITF India F3 | 02/28 06:20 | 25 | Prashanth, N. Vijay Sundar v Anand, Kunal | 6-2,5-7,6-1 | |
| ITF India F2 | 02/24 06:50 | 28 | Balaji, N. Sriram v Prashanth, N. Vijay Sundar | 6-3,6-4 | |
| ITF India F2 | 02/23 04:30 | 27 | Prashanth, N. Vijay Sundar v Vinsant, Shane | 6-2,6-4 | |
| ITF India F2 | 02/22 06:50 | 26 | Prashanth, N. Vijay Sundar v Khabibulin, Timur | 6-3,6-1 | |
| ITF India F2 | 02/21 06:00 | 25 | Prashanth, N. Vijay Sundar v Adil Kalyanpur | 6-2,6-3 | |
| ITF India F1 | 02/14 07:00 | 25 | Prashanth, N. Vijay Sundar v Vinsant, Shane | 1-6,3-6 | |
| Kazakhstan F2, Singles | 02/01 05:00 | 26 | Prashanth, N. Vijay Sundar v Kapas, Andriej | 4-6,2-6 | |
| Kazakhstan F2, Singles | 01/30 05:00 | 25 | Denis Yevseyev v Prashanth, N. Vijay Sundar | 6-7,2-6 | |
| ITF Kazakhstan F1 | 01/24 05:00 | 25 | Prashanth, N. Vijay Sundar v Fayziev, Sanjar | 4-6,5-7 | |
| Challenger Canberra | 01/10 03:00 | 25 | Prashanth, N. Vijay Sundar v Groth, Sam | 7-6,6-7,3-6 | |
| Australian Open 2017 WC | 12/02 02:50 | 27 | Prashanth, N. Vijay Sundar v Wu, Di | 6-4,3-6,4-6 | |
| Australian Open 2017 WC | 11/30 03:50 | 26 | Li, Zhao-Tai v Prashanth, N. Vijay Sundar | 6-7,0-6 | |
| Challenger Canberra 2 | 11/03 03:15 | 26 | Prashanth, N. Vijay Sundar v Smith, John-Patrick | 1-6,2-6 |