Stadium: Court 7 Round: 25 Ground: Clay
| ITF M15 - Cancun | 2019/04/24 14:00 | Florian Lakat v Pedro Sakamoto | 1-6,6-3,5-7 |
| ITF M15 - Cancun | 2019/04/17 16:50 | Florian Lakat v Julian Bradley | 1-6,6-7 |
| ITF M15 Oslo | 2019/03/07 09:00 | Florian Lakat v Markus Eriksson | 6-7,7-6,6-4 |
| ITF M15 Oslo | 2019/03/05 12:10 | Florian Lakat v Kenneth Raisma | 5-7,6-4,6-3 |
| ITF M15 - Sharm El Sheikh | 2019/02/21 08:00 | Kristian Lozan v Florian Lakat | 6-1,6-4 |
| ITF M15 - Sharm El Sheikh | 2019/02/20 11:35 | Florian Lakat v Francesco Passaro | 6-1,6-3 |
| ITF M15 - Sharm El Sheikh | 2019/02/18 13:45 | Riccardo Maiga v Florian Lakat | 2-6,4-6 |
| ITF M15 - Sharm El Sheikh | 2019/02/18 09:00 | Mattia Scotti v Florian Lakat | 6-7,2-6 |
| ITF M15 Tabarka | 2019/04/29 08:00 | Mason Recci v Ken Onishi | 4-6,1-6 |
| ITF M25 Matsuyama | 2019/04/09 02:50 | Gage Brymer v Ken Onishi | 7-6,6-2 |
| ITF M15 - Tsukuba | 2019/03/25 01:00 | Ryuki Matsuda v Ken Onishi | 6-2,6-3 |
| ITF M15 Kofu | 2019/03/18 00:30 | Mick Veldheer v Ken Onishi | 7-5,6-2 |
| ITF M15 - Sharm El Sheikh | 2019/03/11 08:00 | Ken Onishi v George Tsivadze | 3-6,6-2,8-10 |
| ITF M15 - Sharm El Sheikh | 2019/03/06 12:35 | Ken Onishi v George Tsivadze | 3-6,6-2,3-6 |
| ITF Pakistan F3 | 2018/12/17 05:30 | Ken Onishi v Lorenzo Bocchi | 6-7,3-6 |
| ITF Czech Republic F4 Qual | 2018/06/23 08:00 | Ken Onishi v Samuel Puskar | 3-6,3-6 |