| ITF Canada F9 Qual | 09/19 14:00 | 44 | 카미살, 니콜라스 v Donaldson, Brandon | 6-3,4-6,6-3 | |
| ITF Canada F9 Qual | 09/18 16:00 | 44 | Donaldson, Brandon v Sood, Lakshilt | 6-2,6-0 | |
| ITF Canada F9 Qual | 09/17 14:00 | 44 | Donaldson, Brandon v 룬, 저스틴 | 6-2,6-2 | |
| ITF Canada F8 Qual | 09/10 13:00 | 44 | Lippens, Michael v Donaldson, Brandon | 6-1,5-7,6-1 | |
| ITF Canada F7 Qual | 09/05 16:00 | 44 | 게르바이스, 와시 v Donaldson, Brandon | 6-3,6-2 | |
| ITF Canada F7 Qual | 09/04 14:00 | 44 | Dynka, Tom v Donaldson, Brandon | 1-6,1-6 | |
| ITF USA F27 Qual | 08/06 14:30 | 62 | Woog, Jarryd v Donaldson, Brandon | Retired | |
| USA F26, Singles Qualifying | 07/31 16:00 | 62 | Donaldson, Brandon v 포세트, 톰 | 2-6,1-6 | |
| USA F26, Singles Qualifying | 07/30 15:30 | 62 | Donaldson, Brandon v van Orderlain, Drew | 6-2,6-3 | |
| ITF USA F25 Qual | 07/23 13:30 | 62 | Santiago, Mico v Donaldson, Brandon | 6-2,6-2 | |
| ITF USA F24 Qual | 07/16 15:30 | 62 | Donaldson, Brandon v 모리스, 에릭 | 3-6,2-6 | |
| ITF USA F18 | 06/11 16:30 | 62 | 코에펠, 도미니크 v Donaldson, Brandon | 6-2,6-2 | |
| ITF Canada F2 Qual | 03/07 15:50 | 44 | 펠리워, 필리프 v Donaldson, Brandon | 6-1,6-2 | |
| ITF Canada F2 Qual | 03/06 13:00 | 44 | Donaldson, Brandon v Achour, Nazar | 2-6,7-5,6-0 | |
| ITF USA F7 Qual | 02/13 18:00 | 60 | Donaldson, Brandon v Gasperini, Lourenzo | 3-6,4-6 | |
| ITF USA F6 | 01/30 15:00 | 60 | 코바세비치, 알렉산달 v Donaldson, Brandon | 7-6,6-4 | |
| ITF USA F4 | 01/17 17:00 | 60 | Carvajal, Gabriel v Donaldson, Brandon | Retired | |
| ITF USA F35 | 11/28 14:00 | 62 | 핀델-하우킨스, 젝 v Donaldson, Brandon | 6-4,6-4 | |
| ITF USA F34 Qual | 11/21 15:00 | 62 | 마르케스, 콜린 v Donaldson, Brandon | 5-7,6-2,6-1 | |
| ITF Mexico F8 | 06/20 18:30 | - | Gonzalez Aramburu, Jorge Enrique v Donaldson, Brandon | 6-4,5-7,6-4 | |
| ITF Mexico F7 | 06/16 23:05 | - | 크라이니크, 파벨 v Donaldson, Brandon | 6-3,6-4 | |
| ITF Mexico F7 | 06/13 15:00 | - | 고메즈, 알레잔드로 v Donaldson, Brandon | Retired | |
| ITF Mexico F6 | 06/08 15:30 | - | Amiri, Farzin Danny v Donaldson, Brandon | 6-3,6-4 | |
| ITF Mexico F6 | 06/07 18:30 | - | Donaldson, Brandon v 벤데크, 조세 다니엘 | 7-5,7-5 | |
| ITF USA F16 | 05/08 20:00 | - | Donaldson, Brandon v Numajiri, Keisuke | 1-6,2-6 | |
| ITF USA F15 Qual | 05/01 17:00 | - | Donaldson, Brandon v 브리토, 루이스 | 3-6,1-6 | |
| ITF Canada F2 Qual | 03/07 16:00 | - | Donaldson, Brandon v 돈스키, 알렉산더 | 6-7,6-7 | |
| ITF Canada F1 | 03/04 15:00 | - | Donaldson, Brandon v 도나티, 마테오 | 2-6,2-6 | |
| ITF Canada F1 Qual | 03/02 15:00 | - | Rihani, Rached v Donaldson, Brandon | 4-6,4-6 | |
| ITF USA F9 Qual | 02/20 18:00 | - | Donaldson, Brandon v Schalet, Myles | 3-6,2-6 |