Stadium: COURT 3 Round: 25 Ground: Hardcourt indoor
| ITF M25 Jonkoping | 2021/09/20 09:20 | Daniel Little v Jonathan Stenberg | 6-4,6-2 |
| ITF M25 Sintra | 2021/09/15 14:40 | Daniel Little v John Echeverria | 6-3,4-6,3-6 |
| ITF M25 Sintra | 2021/09/14 13:20 | Daniel Little v Alan F R Fierros | 4-6,6-7 |
| ITF M25 Sintra | 2021/09/13 12:00 | Daniel Little v Iago D Alvarez | 6-1,6-3 |
| ITF M25 Sintra | 2021/09/08 09:00 | Anton Matusevich v Daniel Little | 6-4,6-4 |
| ITF M25 Sintra | 2021/09/07 08:30 | Diego F Flores v Daniel Little | 6-4,0-6,6-10 |
| ITF M25 Sintra | 2021/09/06 12:30 | Mikel Martinez v Daniel Little | 3-6,3-6 |
| UK Pro League | 2021/08/28 10:00 | Daniel Little v Ewan Moore | 6-0,6-7,10-6 |
| Davis Cup | 2021/09/18 12:55 | Patrik Niklas-Salminen v Prajnesh Gunneswaran | 3-6,5-7 |
| Challenger Warsaw | 2021/08/22 09:00 | Christopher Heyman v Patrik Niklas-Salminen | 6-1,6-3 |
| ITF M15 Bratislava | 2021/08/17 13:40 | Matvey Minin v Patrik Niklas-Salminen | 6-1,7-6 |
| ITF M15 Gdynia | 2021/08/10 14:10 | Alexis Musialek v Patrik Niklas-Salminen | 6-4,6-3 |
| ITF M15 Parnu | 2021/08/04 08:30 | Patrik Niklas-Salminen v Yan Sabanin | 3-6,6-7 |
| Challenger Tampere | 2021/07/19 16:05 | Patrik Niklas-Salminen v Alexandre Muller | 2-6,1-6 |
| ITF M15 Nur-Sultan | 2021/02/10 04:45 | Patrik Niklas-Salminen v Oscar Weightman | 6-4,4-6,2-6 |
| ITF M15 Nur-Sultan | 2021/02/04 05:00 | Otto Virtanen v Patrik Niklas-Salminen | 6-2,6-3 |