Stadium: Court 1 Round: 28 Ground: Hardcourt indoor
| ITF - M15 Héraklion | 2020/11/26 07:30 | Patten, Henry v Kirkov, Vasil | 6-4,6-1 |
| ITF M15 Tallahassee | 2021/10/29 13:55 | Ben Shelton v Kirkov, Vasil | 6-7,6-2,3-6 |
| ITF M15 Tallahassee | 2021/10/28 15:50 | Mcnally, John v Kirkov, Vasil | 4-6,2-6 |
| ITF M15 Tallahassee | 2021/10/27 18:00 | Liam Draxl v Kirkov, Vasil | 3-6,3-6 |
| ITF M25 Prague | 2021/10/07 13:00 | Timo Stodder v Kirkov, Vasil | 6-2,6-1 |
| ITF M25 Prague | 2021/10/06 07:55 | Kirkov, Vasil v Januska, Adam | 6-0,6-0 |
| ITF M25 Falun | 2021/10/01 14:30 | Kirkov, Vasil v Shintaro Imai | 2-6,5-7 |
| ITF M25 Falun | 2021/09/30 14:20 | Antoine Escoffier v Kirkov, Vasil | 6-3,4-6,4-6 |
| ITF M25 Falun | 2021/09/29 15:20 | Kirkov, Vasil v Leopold Zima | 6-4,6-4 |
| ITF M15 Tallahassee | 2021/10/29 13:55 | Patten, Henry v Sho Shimabukuro | 6-4,6-2 |
| ITF M15 Tallahassee | 2021/10/28 14:00 | Bruno Kuzuhara v Patten, Henry | 3-6,6-7 |
| ITF M15 Tallahassee | 2021/10/27 20:30 | Matt Kuhar v Patten, Henry | 4-6,3-6 |
| ITF M15 Ithaca | 2021/10/10 13:55 | Charles Broom v Patten, Henry | 6-7,6-3,6-4 |
| ITF M15 Ithaca | 2021/10/09 15:00 | Patten, Henry v Kodat, Toby Alex | 6-4,6-4 |
| ITF M15 Ithaca | 2021/10/08 15:00 | Radu Mihai Papoe v Patten, Henry | 2-6,2-6 |
| ITF M15 Ithaca | 2021/10/07 14:00 | Patten, Henry v Taha Baadi | 4-6,6-3,7-6 |
| ITF M15 Ithaca | 2021/10/06 17:40 | Gabi Adrian Boitan v Patten, Henry | 2-6,1-6 |