Stadion: Center Court Round: 25 Ground: Hardcourt outdoor
| ITF - Vietnam F4 | 2018/10/22 02:30 | Nitin Kumar Sinha v Jesse Delaney | 7-6,6-3 |
| ITF - Vietnam F4 | 2018/10/21 03:00 | Nitin Kumar Sinha v Quang T Tran | 6-0,6-0 |
| ITF - Thailand F6 | 2018/10/10 04:55 | Nitin Kumar Sinha v Felix Corwin | 1-6,3-6 |
| ITF - Thailand F6 | 2018/10/08 03:30 | Pruchya Isarow v Nitin Kumar Sinha | 4-6,2-6 |
| ITF - Thailand F3 | 2018/09/03 03:00 | Pruchya Isarow v Nitin Kumar Sinha | 6-2,6-2 |
| ITF - Thailand F2 | 2018/08/29 04:55 | Nitin Kumar Sinha v Dayne Kelly | 6-3,2-6,2-6 |
| ITF - Thailand F2 | 2018/08/28 06:25 | Nitin Kumar Sinha v Kelsey Stevenson | 7-5,5-7,7-5 |
| ITF - Thailand F1 | 2018/08/22 02:00 | Ronnie Schneider v Nitin Kumar Sinha | 6-0,6-2 |
| ITF - Libanon F1 | 2018/09/29 13:00 | Alexandre Muller v Guillermo Olaso | 4-6,6-3,6-0 |
| ITF - Libanon F1 | 2018/09/28 13:00 | Guillermo Olaso v Edoardo Eremin | 6-1,6-4 |
| ITF - Libanon F1 | 2018/09/27 13:00 | Guillermo Olaso v Hasan Ibrahim | 6-2,6-4 |
| ITF - Libanon F1 | 2018/09/26 14:35 | Guillermo Olaso v Jaroslav Pospisil | 6-1,6-1 |
| ITF - Deutschland F8 | 2018/07/19 11:35 | Orlando Luz v Guillermo Olaso | 7-6,6-0 |
| ITF - Deutschland F8 | 2018/07/18 11:25 | Lucas Gerch v Guillermo Olaso | 2-6,3-6 |
| ITF - Spanien F16 | 2018/06/27 18:45 | Evan Hoyt v Guillermo Olaso | 4-6,6-2,6-4 |
| ITF - Spanien F16 | 2018/06/26 19:40 | Antonio Cembellin Prieto v Guillermo Olaso | 3-6,3-6 |