Stadium: Court 13 Round: 62 Ground: Hardcourt outdoor
| ITF M25 - Sintra | 2023/09/03 08:00 | Marcus Walters v Julius Augunas | 6-1,6-3 |
| ITF M15 - Eupen | 2023/08/10 09:00 | Marcus Walters v Axel Garcian | 6-3,1-6,3-6 |
| ITF M15 - Eupen | 2023/08/09 15:05 | Esteban Bruna v Marcus Walters | 6-7,1-6 |
| ITF M15 - Eupen | 2023/08/08 14:00 | Ethan Cook v Marcus Walters | 4-6,6-7 |
| ITF M15 - Eupen | 2023/08/08 08:00 | Marcus Walters v Joris Hoogland | 6-1,6-2 |
| ITF M15 - Eupen | 2023/08/07 07:00 | Francesco Scarpa v Marcus Walters | 4-6,1-6 |
| UK Pro League | 2023/06/01 14:30 | Johannus Monday v Marcus Walters | 6-4,6-3 |
| UK Pro League | 2023/05/31 11:30 | Marcus Walters v Patrick Brady | 6-7,2-6 |
| ITF M25 - Sintra | 2023/09/05 14:30 | Martim Simoes v Alfredo Casso | 3-6,6-2,10-2 |
| ITF M25 - Sintra | 2023/09/03 08:00 | Martim Simoes v Guilherme Valdoleiros | 6-2,6-3 |
| ITF M25 - Idanha-A-Nova | 2023/08/29 08:00 | David Poljak v Martim Simoes | 6-3,7-5 |
| ITF M25 - Idanha-A-Nova | 2023/08/21 09:45 | Goncalo Falcao v Martim Simoes | 6-3,6-4 |
| ITF M15 - Monastir | 2023/05/29 12:30 | Martim Simoes v Martin Borisiouk | 0-6,1-6 |
| ITF M15 - Monastir | 2023/05/28 08:30 | Rishabdev Raman v Martim Simoes | 0-6,4-6 |
| ITF M15 - Monastir | 2023/05/22 08:30 | Linang Xiao v Martim Simoes | 6-2,2-6,10-6 |
| ITF M25 - Monastir | 2022/10/23 08:00 | Daniele Rapagnetta v Martim Simoes | 3-6,6-4,10-6 |