Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| Challenger Concepcion | 2021/02/14 16:00 | Guido Ivan Justo v Mariano Kestelboim | 3-6,6-4,3-6 |
| Challenger Sao Paulo | 2020/11/22 14:00 | Camilo Ugo Carabelli v Mariano Kestelboim | 6-3,6-2 |
| Challenger Sao Paulo | 2020/11/21 14:00 | Paulo A S Dos Santos v Mariano Kestelboim | 1-6,4-6 |
| ITF M15 Quinta Do Lago | 2020/11/03 09:30 | Edoardo Graziani v Mariano Kestelboim | 1-6,6-2,6-1 |
| ITF M25 Vale Do Lobo | 2020/10/27 09:00 | Mariano Kestelboim v Raphael Baltensperger | 3-6,3-6 |
| ITF M25 Vale Do Lobo | 2020/10/26 10:45 | Mariano Kestelboim v Afonso Salgado | 6-0,6-0 |
| ITF M25 Vale Do Lobo | 2020/10/25 12:30 | Mariano Kestelboim v Tiago Torres | 6-4,6-3 |
| ITF M15 Curtea de Arges | 2020/09/16 12:55 | Mariano Kestelboim v Franco Agamenone | 3-6,2-6 |
| Challenger Kobe | 2019/11/05 01:30 | Renta Tokuda v Yuta Kawahashi | 6-3,6-1 |
| Challenger Kobe | 2019/11/04 01:30 | Yuta Kawahashi v Ren Nakamura | 6-2,6-1 |
| ITF M15 Changwon | 2019/10/16 02:55 | Yuta Kawahashi v Michael Shabaz | 7-5,2-6,4-6 |
| ITF M15 Akishima | 2019/06/16 02:00 | Yuta Kawahashi v Yuta Kikuchi | 5-7,7-5,7-6 |
| ITF M15 Akishima | 2019/06/15 03:30 | Rio Noguchi v Yuta Kawahashi | 4-6,3-6 |
| ITF M15 Akishima | 2019/06/14 01:00 | Yuta Kawahashi v Kazuma Kawachi | 7-5,6-1 |
| ITF M15 Akishima | 2019/06/13 02:30 | Sho Shimabukuro v Yuta Kawahashi | 2-6,6-4,3-6 |
| ITF M15 Akishima | 2019/06/11 06:35 | Yuta Kawahashi v Kousuke Ogura | 6-0,6-0 |