Stadium: Center Court Round: 19 Ground: Hardcourt outdoor
| Challenger - Chennai | 2023/02/12 04:30 | Giovanni Mpetshi Perricard v Nam, Ji Sung | 4-6,4-6 |
| Challenger Nonthaburi | 2023/01/15 08:25 | Nam, Ji Sung v Giovanni Fonio | 6-4,4-6,2-6 |
| Challenger Nonthaburi | 2023/01/02 03:00 | Alafia Ayeni v Nam, Ji Sung | 6-3,6-4 |
| Challenger Nonthaburi | 2023/01/01 03:00 | Nam, Ji Sung v Oleksandr Ovcharenko | 6-3,6-1 |
| Challenger Kobe | 2022/11/13 06:30 | Renta Tokuda v Nam, Ji Sung | 6-4,6-1 |
| Challenger Matsuyama | 2022/11/07 03:45 | Jason Jung v Nam, Ji Sung | 6-3,6-4 |
| Challenger Matsuyama | 2022/11/06 04:20 | Jonathan Mridha v Nam, Ji Sung | 6-7,3-6 |
| Challenger Yokohama | 2022/10/30 02:45 | Nam, Ji Sung v Taisei Ichikawa | 6-7,5-7 |
| Challenger - Chennai | 2023/02/12 04:30 | Sumit Nagal v Calum Puttergill | 6-1,6-3 |
| Coupe Davis | 2023/02/04 12:25 | Holger Rune v Sumit Nagal | 7-5,6-3 |
| Coupe Davis | 2023/02/03 16:10 | August Holmgren v Sumit Nagal | 6-4,3-6,4-6 |
| Challenger - Ottignies | 2023/01/23 19:00 | Sumit Nagal v Gauthier Onclin | 2-6,6-2,5-7 |
| Challenger Nonthaburi | 2023/01/15 07:40 | Shintaro Mochizuki v Sumit Nagal | 6-4,1-6,7-5 |
| ATP Pune | 2023/01/02 11:35 | Filip Krajinovic v Sumit Nagal | 6-4,4-6,6-4 |
| Challenger Valencia | 2022/11/22 13:35 | Javier Barranco Cosano v Sumit Nagal | 6-2,6-4 |
| Montevideo, Uruguay | 2022/11/07 20:00 | Felipe Meligeni Rodrigues Alves v Sumit Nagal | 6-4,6-3 |