Stadium: Hard 21 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/17 10:00 | Filip Bergevi v Karl Friberg | 6-3,7-6 |
| ITF M25 Falun | 2021/09/27 09:20 | Karl Friberg v Daniel Little | 1-6,2-6 |
| ITF M25 Falun | 2021/09/26 11:00 | Karl Friberg v Felipe Mikkelsen | 6-1,6-1 |
| ITF M25 Jonkoping | 2021/09/21 12:20 | Evgeny Karlovskiy v Karl Friberg | 6-4,6-1 |
| ITF M15 Ulcinj | 2021/09/16 09:50 | Rrezart Cungu v Karl Friberg | 6-1,6-3 |
| ITF M15 Ulcinj | 2021/09/14 08:00 | Karl Friberg v Petar Jovanovic | 6-3,6-0 |
| ITF M15 Ulcinj | 2021/09/07 10:55 | Karl Friberg v Antonio Massara | 2-6,3-6 |
| ITF M15 Frederiksberg | 2021/08/03 10:05 | Sebastian Prechtel v Karl Friberg | 6-1,6-1 |
| ITF M15 Heraklion | 2021/11/18 12:15 | Alastair Gray v Michael Zhu | 6-4,6-7,3-6 |
| ITF M15 Heraklion | 2021/11/17 08:05 | Alastair Gray v Kai Lemstra | 6-1,7-5 |
| ITF M15 Heraklion | 2021/11/14 07:55 | Alastair Gray v Francesco Maestrelli | 0-6,6-3,5-7 |
| ITF M15 Heraklion | 2021/11/13 12:00 | Alastair Gray v Peter Fajta | 6-3,3-6,6-3 |
| ITF M15 Heraklion | 2021/11/12 08:00 | Alastair Gray v Alec Deckers | 6-3,6-4 |
| ITF M15 Heraklion | 2021/11/11 11:50 | Alastair Gray v Hazem Naw | 4-6,7-6,6-2 |
| ITF M15 Heraklion | 2021/11/10 07:00 | Alastair Gray v Preston Brown | 6-1,7-5 |
| ITF M15 Doha | 2021/10/15 13:00 | Valentin Vacherot v Alastair Gray | 6-3,6-4 |