Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/04/22 10:00 | Shintaro Imai v Ribeiro Marcondes, Igor | 3-6,1-6 |
| ITF - M25 Santo Domingo | 2021/06/03 16:50 | Shintaro Imai v Christian Langmo | 7-6,5-7,5-7 |
| ITF - M25 Santo Domingo | 2021/06/01 15:25 | Shintaro Imai v Evan Zhu | 6-3,6-3 |
| ITF - M15 Monastir | 2021/05/04 09:00 | Alexander Donski v Shintaro Imai | 7-5,6-4 |
| ITF - M15 Monastir | 2021/04/29 08:15 | Shintaro Imai v Benjamin Pietri | 6-7,4-6 |
| ITF - M15 Monastir | 2021/04/22 10:00 | Shintaro Imai v Ribeiro Marcondes, Igor | 3-6,1-6 |
| ITF - M15 Monastir | 2021/04/21 08:25 | Shintaro Imai v Savva Polukhin | 6-3,6-4 |
| ITF - M15 Monastir | 2021/04/16 15:00 | Shintaro Imai v Franco Agamenone | 2-6,2-6 |
| ITF - M15 Monastir | 2021/04/15 08:30 | Shintaro Imai v Martinez, Mirko | 6-1,6-1 |
| ITF - M25 Santo Domingo | 2021/06/02 15:20 | Ribeiro Marcondes, Igor v Nick Hardt | 7-5,3-6,1-6 |
| ITF - M15 Monastir | 2021/04/25 08:30 | Ribeiro Marcondes, Igor v Christoph Negritu | 2-6,2-6 |
| ITF - M15 Monastir | 2021/04/24 09:30 | Ribeiro Marcondes, Igor v Oscar Jose Gutierrez | 6-4,7-5 |
| ITF - M15 Monastir | 2021/04/22 10:00 | Shintaro Imai v Ribeiro Marcondes, Igor | 3-6,1-6 |
| ITF - M15 Monastir | 2021/04/21 12:35 | Guy Orly Iradukunda v Ribeiro Marcondes, Igor | 6-4,2-6,3-6 |
| ITF - M15 Monastir | 2021/04/20 08:00 | Ribeiro Marcondes, Igor v Coelho, Fabio | 6-3,6-3 |
| ITF - M15 Monastir | 2021/04/19 12:00 | Ribeiro Marcondes, Igor v Sibille, Imran | 6-0,6-2 |
| ITF - M15 Monastir | 2021/04/18 08:00 | Ribeiro Marcondes, Igor v Romain Faucon | 6-2,6-3 |