Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Fayetteville | 2021/09/21 14:00 | Jeffrey Von Der Schulenburg v Noah Schachter | 6-3,6-3 |
| ITF M25 Fayetteville | 2021/09/20 14:00 | Adrien Burdet v Noah Schachter | 4-6,1-6 |
| ITF M25 Champaign | 2021/09/14 17:00 | Noah Schachter v Jake Van Emburgh | 3-6,0-6 |
| ITF M25 Guayaquil | 2021/08/04 14:30 | Noah Schachter v Dominik Palan | 6-7,6-1,2-6 |
| ITF M25 Guayaquil | 2021/08/02 17:00 | Noah Schachter v Cristobal Castro | 7-6,6-3 |
| ITF M25 Portoviejo | 2021/07/29 16:35 | Nicolas Alvarez v Noah Schachter | 6-2,6-2 |
| ITF M25 Portoviejo | 2021/07/28 14:25 | Michel Vernier v Noah Schachter | 6-3,1-6,2-6 |
| ITF M25 Weston | 2021/06/28 19:00 | Daniel Mora v Noah Schachter | 2-6,3-6 |
| ITF M25 Fayetteville | 2021/11/02 14:00 | Constantin Frantzen v Mathieu Scaglia | 4-6,5-7 |
| ITF M25 Fayetteville | 2021/11/01 14:00 | Blu Baker v Constantin Frantzen | 7-6,3-6,5-10 |
| ITF M15 Lubbock | 2021/09/26 15:00 | Constantin Frantzen v Sven Lah | 3-6,6-1,4-10 |
| ITF M25 Fort Worth | 2019/10/21 15:00 | Constantin Frantzen v Spencer Papa | 5-7,3-6 |
| ITF M25 Fort Worth | 2019/10/20 15:00 | Constantin Frantzen v Ricardo Alban | 6-3,6-0 |
| ITF M25 Waco | 2019/10/13 15:00 | Constantin Frantzen v Alexander Lebedev | 6-7,2-6 |
| ITF USA F34 | 2018/11/26 21:15 | Michael Geerts v Constantin Frantzen | 6-7,6-2,6-4 |
| ITF USA F34 | 2018/11/25 16:00 | Maximilian Sinn v Constantin Frantzen | 4-6,3-6 |