Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Cairns | 2022/10/02 00:00 | Yutong Su v Hugh Callaghan | 6-7,6-7 |
| ITF M25 Sunderland | 2023/01/22 16:00 | Damian Rodriguez v Mattias Southcombe | 6-3,6-0 |
| ITF M25 Sheffield | 2023/01/16 11:15 | Tristan McCormick v Mattias Southcombe | 4-6,6-3,10-8 |
| ITF M25 Sheffield | 2023/01/15 13:20 | Mattias Southcombe v Matthew Summers | 6-3,6-3 |
| UK Pro League | 2022/11/07 14:00 | Anton Matusevich v Mattias Southcombe | 6-3,6-2 |
| ITF M25 Jerusalem | 2022/11/02 13:00 | Louis Wessels v Mattias Southcombe | 6-7,6-3,7-5 |
| ITF M15 Maputo | 2022/10/11 07:30 | Mattias Southcombe v Guy Orly Iradukunda | 6-1,2-6,3-6 |
| ITF M15 Maputo | 2022/10/04 07:30 | Mattias Southcombe v Denis Constantin Spiridon | 3-6,4-6 |
| ITF M25 Budapest | 2022/09/05 09:30 | Mattias Southcombe v Leyton Rivera | 4-6,4-6 |