Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/06/28 08:00 | Valentin Vacherot v Kousuke Ogura | 2-6,7-5,10-7 |
| ITF M15 Monastir | 2021/06/27 09:00 | Nino Stettner v Kousuke Ogura | 2-6,2-6 |
| ITF M15 Monastir | 2021/06/20 10:30 | Kousuke Ogura v Mauro De Maio | 6-7,5-7 |
| ITF M15 Cairo | 2021/04/11 07:00 | Lawrence Bataljin v Kousuke Ogura | 6-1,5-7,20-18 |
| ITF M15 Sharm El Sheikh | 2021/04/05 07:30 | Kousuke Ogura v Daniel Cox | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/03/30 10:05 | Pawel Juszczak v Kousuke Ogura | 6-4,7-5 |
| ITF M15 Sharm El Sheikh | 2021/03/29 07:30 | Daniel Cox v Kousuke Ogura | 4-6,6-1,9-11 |
| ITF M15 Sharm El Sheikh | 2021/03/28 07:00 | Roberto Rosales v Kousuke Ogura | 0-6,1-6 |
| ITF M15 Monastir | 2021/07/04 10:00 | Mark Mandlik v Ivan Dikenstein | 6-1,6-0 |
| ITF M15 Monastir | 2021/06/27 09:00 | Perry Gregg v Mark Mandlik | 6-4,2-6,10-5 |
| ITF M25 Wichita | 2021/06/08 16:45 | Mark Mandlik v Gabriel Diallo | 2-6,7-6,9-11 |
| ITF M25 Wichita | 2021/06/07 15:00 | Charles Broom v Mark Mandlik | 5-7,4-6 |
| ITF M25 Santo Domingo | 2021/05/31 13:00 | Mark Mandlik v Sergio Luis H Ramirez | 6-4,5-7,6-10 |
| ITF M25 Santo Domingo | 2021/05/30 15:30 | Edward Lewis v Mark Mandlik | 0-6,1-6 |
| International Tennis Series | 2020/06/11 14:25 | Mark Mandlik v Tommaso Carnevale-Miino | 6-3,6-4 |
| International Tennis Series | 2020/06/11 12:45 | Mark Mandlik v Junior Alexander Ore | 6-3,1-6,8-10 |