Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF - M25 Sunderland | 2020/02/25 12:30 | Alexander Donski v Mark Whitehouse | 6-7,4-6 |
| ITF M25 Glasgow | 2020/02/20 13:10 | Alexander Donski v Marek, Wojciech | 2-6,1-6 |
| ITF M25 Glasgow | 2020/02/18 10:00 | Jack Gibbens v Alexander Donski | 3-6,1-6 |
| Barnstaple, Singles Qualifying M-ITF-GBR-01A | 2020/02/11 11:30 | Alexander Donski v Leopold Zima | 6-1,3-6,4-6 |
| ITF - M15 Héraklion | 2019/12/13 08:30 | Vivero Gonzalez, Pablo v Alexander Donski | 6-1,6-2 |
| ITF - M15 Héraklion | 2019/12/11 08:00 | Heger, Tim v Alexander Donski | 3-6,2-6 |
| ITF - M15 Héraklion | 2019/12/05 09:50 | David Pichler v Alexander Donski | 6-4,0-6,6-4 |
| ITF - M15 Héraklion | 2019/12/03 09:30 | Alexander Donski v Stamoulos, Ioannis | 6-3,6-3 |
| ITF M25 Jablonec Nad Nisou | 2020/09/20 08:00 | Prechtel, Sebastian v Petr Michnev | 6-4,1-6,9-11 |
| ITF M15 Anif | 2020/08/24 11:20 | Alexander Shevchenko v Prechtel, Sebastian | 7-6,6-1 |
| ITF M15 Anif | 2020/08/23 12:00 | Botezan, George v Prechtel, Sebastian | 4-6,6-7 |
| ITF M15 Anif | 2020/08/23 07:00 | Marcell Bartakovics v Prechtel, Sebastian | 2-6,2-6 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2020/08/17 11:30 | Erler, Alexander v Prechtel, Sebastian | 6-4,4-6,10-8 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2020/08/17 09:00 | Michael Gloeckler v Prechtel, Sebastian | 4-6,4-6 |
| Challenger Potchefstroom | 2020/03/11 08:00 | Benjamin Lock v Prechtel, Sebastian | 7-6,6-1 |
| Challenger Potchefstroom | 2020/03/10 08:00 | Prechtel, Sebastian v Alec Beckley | 6-1,6-4 |