Stadium: Court 4 Round: 26 Ground: Clay
| ITF M15 Naples | 2023/02/22 15:00 | Ignacio Monzon v Alvaro Guillen Meza | 2-6,0-6 |
| ITF M15 Palm Coast | 2023/02/08 19:50 | Alvaro Guillen Meza v Toby Alex Kodat | 3-6,2-6 |
| Davis Cup | 2023/02/04 09:00 | Stefanos Tsitsipas v Alvaro Guillen Meza | 7-5,6-2 |
| ITF M15 Lima | 2022/11/16 18:10 | Alvaro Guillen Meza v Ignacio Buse | 4-6,4-6 |
| ITF M15 Lima | 2022/11/12 17:00 | Ignacio Buse v Alvaro Guillen Meza | 6-2,7-5 |
| ITF M15 Lima | 2022/11/11 15:00 | Alvaro Guillen Meza v Arklon H D Pino | 6-4,3-6,6-3 |
| ITF M15 Lima | 2022/11/10 18:15 | Davide Pontoglio v Alvaro Guillen Meza | 0-6,2-6 |
| ITF M15 Lima | 2022/11/09 18:20 | Ignacio A B Otarola v Alvaro Guillen Meza | 2-6,6-7 |
| ITF M15 Naples | 2023/02/21 16:30 | Rei Sakamoto v ZhengQing Ji | 7-6,7-5 |
| ITF M15 Palm Coast | 2023/02/09 18:00 | Toby Alex Kodat v Rei Sakamoto | 6-2,6-3 |
| ITF M15 Palm Coast | 2023/02/07 16:30 | Rei Sakamoto v Kristjan Tamm | 7-6,2-6,6-3 |
| ITF M25 Malibu | 2023/01/02 17:00 | Rei Sakamoto v Arthur Neuhaus | 1-6,2-6 |
| ITF M15 Antalya | 2022/10/26 11:25 | Dan Alexandru Tomescu v Rei Sakamoto | 4-6,6-4,6-2 |
| ITF M15 Antalya | 2022/10/19 07:00 | Rei Sakamoto v Savva Polukhin | 3-6,2-6 |
| ITF M15 Albuquerque | 2022/09/30 20:25 | Rei Sakamoto v Maciej Rajski | 2-6,3-6 |
| ITF M15 Albuquerque | 2022/09/29 15:00 | Yuta Kikuchi v Rei Sakamoto | 2-6,2-6 |