Stadium: Court 5 Round: 54 Ground: Hardcourt indoor
| ITF - M25 Calabasas | 2021/10/27 17:00 | Felix Corwin v Joshua Sheehy | 1-6,6-0,6-2 |
| ITF - M25 Calabasas | 2021/10/26 20:00 | Joshua Sheehy v Miles Jones | 6-3,6-3 |
| ITF - M15 Ithaca | 2021/10/05 13:00 | Joshua Sheehy v Sebastian Dominko | 4-6,6-7 |
| ITF - M15 Cancun | 2021/09/30 14:30 | Joshua Sheehy v Emil Reinberg | 2-6,6-4,3-6 |
| ITF - M15 Cancun | 2021/09/29 17:55 | Joshua Sheehy v Joao Victor C Loureiro | 7-6,4-6,6-4 |
| ITF - M15 Cancun | 2021/09/28 14:00 | Joshua Sheehy v Federico Agustin Gomez | 3-6,4-6 |
| ITF - M15 Cancun | 2021/09/22 20:45 | Joshua Sheehy v Juan A H Serrano | 3-6,2-6 |
| ITF - M25 Champaign | 2021/09/14 17:00 | Emile Hudd v Joshua Sheehy | 6-4,6-2 |
| ITF - M15 Ithaca | 2021/11/04 13:55 | Felix Corwin v Alex Knaff | 5-7,7-6,7-5 |
| ITF - M15 Ithaca | 2021/11/03 15:30 | Radu Mihai Papoe v Alex Knaff | 6-4,3-6,0-6 |
| ITF - M15 Tallahassee | 2021/10/27 13:55 | Alex Knaff v Sho Shimabukuro | 4-6,6-4,4-6 |
| ITF - M15 Tallahassee | 2021/10/26 13:00 | Blu Baker v Alex Knaff | 6-7,5-7 |
| ITF - M15 Tallahassee | 2021/10/25 13:00 | Alex Knaff v Matthew Dellavedova | 6-4,6-2 |
| ITF - M25 Setubal | 2021/10/05 10:00 | Arthur Cazaux v Alex Knaff | 6-1,6-7,10-5 |
| ITF - M25 Setubal | 2021/10/04 10:00 | Aditya Katticaren v Alex Knaff | 0-6,0-6 |
| ITF - M15 Forbach | 2021/09/27 13:30 | Millen Hurrion v Alex Knaff | 6-3,6-7,10-3 |