| ITF Portugal F7 Qual | 04/08 19:00 | 44 | Sebastian Prechtel v Tomas C Abasolo | 1-6,6-3,7-5 | |
| ITF Croatia F3 | 03/21 09:00 | 25 | Matteo Viola v Sebastian Prechtel | 6-1,6-2 | |
| ITF Croatia F2 | 03/14 10:35 | 25 | Sebastian Prechtel v Nik Razborsek | 1-6,6-4,4-6 | |
| ITF Croatia F1 | 03/07 09:00 | 60 | Sebastian Prechtel v Karlo Kranic | 2-6,7-5,4-10 | |
| ITF Croatia F1 | 03/04 15:00 | 60 | Sebastian Prechtel v Frane Nincevic | 6-4,7-5 | |
| Challenger Eckental Qual | 10/30 11:30 | 54 | Evan Furness v Sebastian Prechtel | 7-5,6-1 | |
| Challenger Eckental Qual | 10/29 09:00 | 46 | Sebastian Prechtel v Fabian Penzkofer | 6-2,6-1 | |
| Challenger Eckental Qual | 10/28 07:30 | 45 | Sebastian Prechtel v Andreas Siljestrom | 4-6,6-1,6-1 | |
| ITF Germany F16 | 10/24 12:25 | 25 | Sebastian Prechtel v Daniel Masur | 3-6,3-6 | |
| ITF Germany F16 | 10/23 10:00 | 44 | Sebastian Prechtel v Mick Veldheer | 6-3,5-7,6-1 | |
| ITF Germany F16 | 10/22 12:00 | 44 | Sebastian Prechtel v Benjamin Dhoe | 7-5,7-6 | |
| Challenger Ismaning Qual | 10/14 11:20 | 45 | Sebastian Prechtel v Alejandro D-Fokina | 6-7,3-6 | |
| ITF Germany F14 | 10/12 14:00 | 26 | Sebastian Prechtel v Robin Kern | 3-6,4-6 | |
| ITF Germany F14 | 10/11 12:00 | 25 | Sebastian Prechtel v Yan Sabanin | 6-2,6-4 | |
| ITF Turkey F37 | 10/04 08:50 | 25 | Sebastian Prechtel v Alessandro Petrone | 5-7,7-5,2-6 | |
| ITF Turkey F36 | 09/28 07:30 | 26 | Sebastian Prechtel v Dennis Novak | 2-6,2-6 | |
| ITF Turkey F36 | 09/26 07:30 | 25 | Sebastian Prechtel v Caio Silva | 6-3,6-3 | |
| ITF Austria F4 | 07/27 09:00 | 27 | Sebastian Prechtel v Daniel Dutra Da Silva | 0-6,0-6 | |
| ITF Austria F4 | 07/26 10:10 | 26 | Sebastian Prechtel v Dominic Weidinger | 6-1,6-2 | |
| ITF Austria F4 | 07/24 08:00 | 25 | Sebastian Prechtel v Rio Noguchi | 6-3,6-2 | |
| ITF Austria F3 | 07/19 08:00 | 26 | Thomas Statzberger v Sebastian Prechtel | Retired | |
| ITF Austria F3 | 07/18 08:00 | 25 | Sebastian Prechtel v Matvey Khomentovskiy | 6-4,1-6,6-3 | |
| ITF Austria F2 | 07/13 11:00 | 27 | Sebastian Prechtel v Jeremy Jahn | 4-6,0-6 | |
| ITF Austria F2 | 07/12 08:30 | 26 | Tobias Simon v Sebastian Prechtel | Retired | |
| ITF Austria F2 | 07/11 08:30 | 25 | Yvo Panak v Sebastian Prechtel | 4-6,3-6 | |
| Challenger Marburg Qual | 07/01 10:45 | 46 | Mikael Ymer v Sebastian Prechtel | 6-1,0-6,7-6 | |
| ITF Italy F19 | 06/26 09:00 | 25 | Sebastian Prechtel v Federico Iannaccone | 5-7,6-3,2-6 | |
| ITF Italy F18 | 06/23 15:00 | 27 | Sebastian Prechtel v Lorenzo Frigerio | 6-7,2-6 | |
| ITF Italy F18 | 06/22 10:00 | 26 | Sebastian Prechtel v Marcelo Zormann | 6-3,7-6 | |
| ITF Italy F18 | 06/20 11:35 | 25 | Orlando Luz v Sebastian Prechtel | 3-6,6-3,4-6 |