Stadium: Court 3 Round: 44 Ground: Carpet indoor
| ITF M25 - Nußloch | 2020/01/20 10:05 | Stefan Seifert v Niklas Albuszies | 6-0,6-2 |
| ITF M25 - Nußloch | 2020/01/19 09:00 | Stefan Seifert v Paul-Georg Guenther | 6-3,6-1 |
| ITF - M15 Sharm-el-Sheikh | 2019/11/21 09:15 | Stefan Seifert v Vladyslav Manafov | 2-6,4-6 |
| ITF - M15 Sharm-el-Sheikh | 2019/11/20 13:50 | Stefan Seifert v Filip Duda | 6-4,6-1 |
| ITF M15 - Pärnu | 2019/11/02 10:00 | Stefan Seifert v Evgeny Tyurnev | 5-7,7-5,3-6 |
| ITF M15 - Pärnu | 2019/11/01 11:55 | Stefan Seifert v Maxime Pauwels | 4-6,6-2,6-2 |
| ITF M15 - Pärnu | 2019/10/30 10:10 | Stefan Seifert v Kristjan Tamm | 6-3,3-6,6-4 |
| ITF M15 Liberec | 2019/10/24 08:00 | Stefan Seifert v Uladzimir Ignatik | 4-6,6-7 |
| ITF M25 - Nußloch | 2020/01/20 10:40 | Lasse Muscheites v Jonas Trinker | 6-3,7-5 |
| ITF M25 - Nußloch | 2020/01/19 09:00 | Lasse Muscheites v Tom Clavel | 6-3,6-1 |
| ITF - M15 Sharm-el-Sheikh | 2019/11/18 08:00 | Lasse Muscheites v Piotr Galus | 2-6,5-7 |
| ITF - M15 Sharm-el-Sheikh | 2019/11/13 09:50 | Vladyslav Manafov v Lasse Muscheites | 6-0,6-2 |
| ITF - M15 Sharm-el-Sheikh | 2019/11/12 08:00 | Lasse Muscheites v Mauro De Maio | 6-3,7-6 |
| ITF - M15 Sharm-el-Sheikh | 2019/11/10 07:00 | Goran Markovic v Lasse Muscheites | 3-6,0-6 |
| ITF M15 - Pärnu | 2019/11/02 10:00 | Lasse Muscheites v Vladimir Ivanov | 4-6,6-3,3-6 |
| ITF M15 - Pärnu | 2019/11/01 12:35 | Lasse Muscheites v Daniil Glinka | 3-6,7-6,6-4 |