Stadium: Court 5 Round: 28 Ground: Hardcourt indoor
| ITF M25 Calabasas | 2019/03/22 20:00 | Jonathan Gray v Stefan Kozlov | 2-6,1-6 |
| ITF M25 Calabasas | 2019/03/22 02:25 | Keegan Smith v Jonathan Gray | 3-6,7-6,1-6 |
| ITF M25 Calabasas | 2019/03/20 19:05 | Eric Hahn v Jonathan Gray | 2-6,2-6 |
| ITF M25 Calabasas | 2019/03/19 18:55 | Jonathan Gray v William Griffith | 6-2,7-6 |
| ITF M25 Calabasas | 2019/03/18 17:00 | Evan Zhu v Jonathan Gray | 3-6,2-6 |
| ITF M15 Arcadia | 2019/03/12 18:00 | Alan Kohen v Jonathan Gray | 6-3,6-3 |
| ITF M15 Faro | 2019/02/26 10:00 | Constantin Schmitz v Jonathan Gray | 6-2,6-2 |
| ITF M15 Faro | 2019/02/25 13:20 | Goncalo Falcao v Jonathan Gray | 2-6,1-6 |
| ITF M15 Kofu | 2019/03/20 05:10 | Mick Veldheer v Kazuki Nishiwaki | 4-6,6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2019/02/18 12:15 | Kazuki Nishiwaki v Giorgio Ricca | 7-5,6-7,6-10 |
| ITF M15 Sharm El Sheikh | 2019/02/18 07:30 | Kazuki Nishiwaki v Mathys Erhard | 6-0,6-1 |
| ITF M15 Anning | 2019/01/12 05:05 | Kazuki Nishiwaki v Agustin Velotti | 6-7,2-6 |
| ITF M15 Anning | 2019/01/11 04:40 | Kazuki Nishiwaki v Nitin Kumar Sinha | 6-7,6-2,6-4 |
| ITF M15 Anning | 2019/01/10 03:00 | Taisei Ichikawa v Kazuki Nishiwaki | 5-7,3-6 |
| ITF M15 Anning | 2019/01/08 04:20 | Kazuki Nishiwaki v Tianjia Guo | 6-1,6-1 |
| ITF M15 Anning | 2019/01/03 05:30 | Eric Vanshelboim v Kazuki Nishiwaki | 4-6,6-1,6-4 |