Stadium: Court 6 Round: 26 Ground: Clay
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 07:00 | Pedro Sakamoto v Giacomo Revelli | 5-7,6-2,6-3 |
| Challenger Trieste | 2021/07/27 16:00 | Giulio Zeppieri v Pedro Sakamoto | 3-6,6-3,6-3 |
| Challenger Trieste | 2021/07/26 13:30 | Pedro Sakamoto v Hernan Casanova | 6-4,7-6 |
| Challenger Trieste | 2021/07/25 13:05 | Pedro Sakamoto v Francesco Forti | 7-6,6-4 |
| ATP Gstaad | 2021/07/17 14:30 | Enzo Couacaud v Pedro Sakamoto | 6-1,6-3 |
| Challenger Todi | 2021/07/12 14:40 | Flavio Cobolli v Pedro Sakamoto | 3-6,6-4,6-3 |
| ITF M25 Casinalbo | 2021/07/06 14:20 | Pedro Sakamoto v Matteo Arnaldi | 3-6,2-6 |
| Challenger Salinas 2 | 2021/04/27 18:40 | Shuichi Sekiguchi v Pedro Sakamoto | 2-6,4-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 07:00 | Illya Beloborodko v Dawid Taczala | 6-1,6-2 |
| ITF M15 Poprád | 2021/07/08 10:30 | Illya Beloborodko v Tomas Jirousek | 4-6,0-6 |
| ITF M15 Poprád | 2021/07/06 07:55 | Illya Beloborodko v Daniel Siniakov | 3-6,7-6,7-5 |
| ITF M15 Poprád | 2021/07/05 08:00 | Illya Beloborodko v Mateusz Terczynski | 6-4,6-2 |
| ITF M15 Poprád | 2021/07/04 08:00 | Illya Beloborodko v Piotr Pawlak | 6-0,6-7,10-6 |
| ITF M25 Wroclaw | 2021/07/01 11:50 | Illya Beloborodko v Hernan Casanova | 2-6,1-6 |
| ITF M25 Wroclaw | 2021/06/30 11:15 | Marco Bortolotti v Illya Beloborodko | 3-6,3-6 |
| ITF M25 Wroclaw | 2021/06/29 08:00 | Daniel Siniakov v Illya Beloborodko | 6-4,4-6,6-10 |