Stadium: Stadium Court Round: 45 Ground: Clay
| ATP - Miami | 2024/03/18 15:00 | Rei Sakamoto v Vit Kopriva | 6-7,6-7 |
| ITF M25 - Bakersfield | 2024/03/12 21:00 | Rei Sakamoto v Elijah Strode | 6-4,1-6,2-6 |
| ITF - M15 Sharm-el-Sheikh | 2024/02/16 08:00 | Rei Sakamoto v Marek Gengel | 1-6,5-7 |
| ITF - M15 Sharm-el-Sheikh | 2024/02/15 10:30 | Antoine Ghibaudo v Rei Sakamoto | 4-6,0-6 |
| ITF - M15 Sharm-el-Sheikh | 2024/02/14 10:35 | Rei Sakamoto v Aliaksandr Liaonenka | 6-4,6-4 |
| ITF - M15 Sharm-el-Sheikh | 2024/02/07 11:00 | Luca Giacomini v Rei Sakamoto | 4-6,3-6 |
| Challenger Yokkaichi | 2023/11/29 01:30 | Coleman Wong v Rei Sakamoto | 6-3,6-2 |
| Challenger Yokkaichi | 2023/11/28 01:00 | Rei Sakamoto v Jurij Rodionov | 6-4,6-4 |
| Challenger - Sarasota | 2024/04/07 16:55 | Alex Rybakov v Viktor Durasovic | 4-6,2-6 |
| ATP - Houston | 2024/03/30 18:25 | Alex Rybakov v Alexander Ritschard | 4-6,4-6 |
| Challenger - Merida | 2024/03/19 23:00 | Alex Rybakov v Louis Wessels | 6-2,6-2 |
| Challenger - Santa Cruz | 2024/03/03 15:00 | Ignacio Carou v Alex Rybakov | 1-6,4-6 |
| ITF - M25 Naples | 2024/02/23 14:50 | Alex Rybakov v Andres Andrade | 3-6,5-7 |
| ITF - M25 Naples | 2024/02/21 19:35 | Collin Altamirano v Alex Rybakov | 3-6,2-6 |
| ITF - M15 Palm Coast | 2024/02/17 13:30 | Andres Andrade v Alex Rybakov | 6-2,7-6 |
| ITF - M15 Palm Coast | 2024/02/16 15:00 | Roberto Cid Subervi v Alex Rybakov | 4-6,3-6 |