Round: 44 Ground: Hardcourt outdoor
| ITF M15 Marburg | 2019/07/11 15:00 | Mauricio Echazu v Lasse Muscheites | 4-6,6-2,7-6 |
| ITF M15 Marburg | 2019/07/10 09:00 | Gibril Diarra v Lasse Muscheites | 6-4,4-6,6-7 |
| ITF M15 Marburg | 2019/07/08 09:00 | Matthew Dellavedova v Lasse Muscheites | 7-5,2-6,9-11 |
| ITF M15 Marburg | 2019/07/08 07:00 | Lasse Muscheites v Niklas Schell | 6-4,6-2 |
| ITF M15 Saarlouis | 2019/07/01 08:00 | Lasse Muscheites v Yannik Steinegger | 4-6,5-7 |
| ITF USA F35 | 2015/11/30 15:00 | Dmytro Kamynin v Lasse Muscheites | 5-7,6-4,6-2 |
| ITF Netherlands F1 Qual | 2015/06/14 08:00 | Lasse Muscheites v Marcel Marlon Sudzum | 6-3,6-0 |
| ITF Netherlands F1 Qual | 2015/06/13 08:30 | Roy Sarut De Valk v Lasse Muscheites | 4-6,6-3,3-6 |
| ITF M15 Vilnius | 2019/07/08 07:00 | Piotr Galus v Lawrence Bataljin | 6-4,3-6,5-10 |
| ITF M15 Wroclaw | 2019/07/03 09:55 | Kristian Lozan v Piotr Galus | 6-2,4-6,6-2 |
| ITF Germany F15 | 2018/10/10 16:45 | Stefan Seifert v Piotr Galus | 6-1,6-2 |
| ITF Germany F15 | 2018/10/08 08:00 | Piotr Galus v Tim Hofmann | 7-5,6-1 |
| ITF Germany F15 | 2018/10/07 09:00 | Dominik Langmajer v Piotr Galus | 5-7,7-5,2-6 |
| ITF Germany F15 | 2018/10/07 08:00 | Piotr Galus v Paulo Knippling | 6-1,6-1 |
| Challenger Szczecin | 2018/09/08 13:25 | Ivan Gakhov v Piotr Galus | 6-1,6-3 |
| ITF Poland F8 | 2018/08/20 08:00 | Petr Nouza v Piotr Galus | 6-0,6-0 |