| ITF M25 Jakarta | 04/27 02:00 | 26 | [251] Ray Ho v Brandon Walkin [231] | 4-6,6-7 | |
| ITF M25 Jakarta | 04/26 03:00 | 25 | Brandon Walkin v Damian Rodriguez | 6-7,6-0,6-1 | |
| ITF M25 Jakarta | 04/18 02:15 | 44 | [251] Ray Ho v Brandon Walkin [227] | Retired | |
| ITF M25 Jakarta | 04/17 02:30 | 44 | Claudio Renardi Lumanau v Brandon Walkin | 2-6,4-6 | |
| ITF M25 Canberra | 03/21 00:45 | 25 | Brandon Walkin v Jeremy Jin | 4-6,3-6 | |
| ITF M25 Canberra | 03/15 04:20 | 25 | [437] Taisei Ichikawa v Brandon Walkin [227] | 6-4,6-3 | |
| ITF M25 Swan Hill | 02/22 00:25 | 25 | [317] Blake Ellis v Brandon Walkin [221] | 7-6,6-4 | |
| ITF M25 Burnie | 02/07 23:00 | 25 | Brandon Walkin v Jake Delaney | 1-6,3-6 | |
| Challenger - Burnie | 01/31 01:10 | 25 | [303] Marc Polmans v Brandon Walkin [220] | 6-2,6-4 | |
| Challenger - Burnie | 01/29 23:00 | 19 | Edward Winter v Brandon Walkin | 6-2,6-7,0-6 | |
| Challenger - Burnie | 01/29 02:25 | 14 | [232] Jason Taylor v Brandon Walkin [221] | 5-7,1-6 | |
| ITF M15 Jakarta | 01/25 05:15 | 25 | [421] Marat Sharipov v Brandon Walkin [221] | Cancelled | |
| ITF M15 Jakarta | 01/21 03:00 | 26 | Thomas Fancutt v Brandon Walkin | Cancelled | |
| ITF M15 Jakarta | 01/18 08:45 | 25 | Brandon Walkin v Yunseok Jang | Cancelled | |
| Challenger - Noumea | 01/03 00:00 | 25 | [191] Facundo D Acosta v Brandon Walkin [222] | 6-3,6-4 | |
| Challenger - Noumea | 01/02 02:20 | 19 | Mitchell Harper v Brandon Walkin | 4-6,6-3,5-7 | |
| Challenger - Noumea | 01/01 02:55 | 14 | Louam Boivin v Brandon Walkin | 1-6,1-6 | |
| Challenger Parma | 10/02 10:05 | 14 | [258] Brandon Walkin v Francesco Forti [468] | 6-4,6-7,4-6 | |
| Challenger Braga | 09/18 14:25 | 14 | Ugo Blanchet v Brandon Walkin | Walkover | |
| Challenger - Istanbul | 09/11 08:00 | 14 | Sarp Agabigun v Brandon Walkin | 6-2,6-2 | |
| ITF M25 Poznań | 08/24 08:00 | 25 | [381] Rudolf Molleker v Brandon Walkin [299] | 2-6,7-6,6-3 | |
| ITF M25 Padova | 08/10 11:55 | 25 | Gianmarco Ferrari v Brandon Walkin | 6-3,6-3 | |
| ITF M25 Dénia | 07/28 08:00 | 26 | [349] Brandon Walkin v Joris De Loore [367] | 2-6,4-6 | |
| ITF M25 Dénia | 07/27 10:40 | 25 | Duarte Vale v Brandon Walkin | 6-7,6-3,4-6 | |
| ITF M15 Litija | 07/13 08:00 | 25 | Amaury Raynel v Brandon Walkin | 6-2,6-1 | |
| ITF M15 Velenje | 07/06 11:20 | 25 | Lukas Krainer v Brandon Walkin | 6-4,7-6 | |
| ITF M15 Skopje | 06/15 09:20 | 25 | Brandon Walkin v Obrad Markovski | Retired | |
| ITF M15 Bytom | 06/09 11:50 | 26 | Brandon Walkin v Lukas Krainer | 3-6,1-6 | |
| ITF M15 Bytom | 06/08 15:35 | 25 | Matthew Romios v Brandon Walkin | Retired | |
| ITF M15 Antalya | 05/26 07:30 | 26 | Paul Woerner v Brandon Walkin | 6-4,6-2 |