Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/05/30 09:00 | Taketo Takamisawa v Mohamed Amine Aissa Khelifa | 4-6,6-0,10-7 |
| ITF M15 Monastir | 2021/05/23 09:30 | Omni Kumar v Taketo Takamisawa | 6-2,6-2 |
| ITF M15 Monastir | 2021/05/16 11:00 | Yuta Kikuchi v Taketo Takamisawa | 4-6,6-2,10-5 |
| ITF M15 Monastir | 2021/05/10 09:00 | Luca Castagnola v Taketo Takamisawa | 4-6,6-3,11-9 |
| ITF M15 Monastir | 2021/05/09 12:00 | Taketo Takamisawa v Thiago Cigarran | 6-1,6-3 |
| ITF M15 Monastir | 2021/05/02 10:30 | Taketo Takamisawa v Harry Wendelken | 1-6,4-6 |
| ITF M15 Monastir | 2021/04/26 08:00 | Lorenzo Bresciani v Taketo Takamisawa | 5-7,6-4,10-1 |
| ITF M15 Changwon | 2019/10/16 04:15 | Taketo Takamisawa v Sanhui Shin | 0-6,1-6 |
| ITF M15 Monastir | 2021/05/30 09:30 | Dong Ju Kim v Ren Nakamura | 7-5,6-7,5-10 |
| ITF M15 Monastir | 2021/05/24 13:45 | Maxence Beauge v Ren Nakamura | 6-3,6-2 |
| ITF M15 Monastir | 2021/05/24 09:00 | Antoine Vincent v Ren Nakamura | 6-1,1-6,9-11 |
| ITF M15 Monastir | 2021/05/23 11:30 | Laelson Rodrigues v Ren Nakamura | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/03/21 16:00 | Ren Nakamura v Toby D. Boyer | 4-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/03/14 13:00 | Zura Tkemaladze v Ren Nakamura | 6-3,6-3 |
| ITF M15 Sharm El Sheikh | 2021/03/07 13:00 | Daniel Little v Ren Nakamura | 6-4,6-4 |
| ITF M15 Sharm El Sheikh | 2020/02/03 08:00 | Ren Nakamura v Anthony Turchi | 5-7,3-6 |