Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF M15 - Sozopol | 2021/10/05 06:30 | Maxim Khorozov v Matic Dimic | 4-6,2-6 |
| ITF M15 - Sozopol | 2021/10/05 06:30 | Nikolay Nedelchev v Michael Gloeckler | 6-0,6-3 |
| ITF M15 - Sozopol | 2021/10/04 07:00 | Samuil Konov v Michael Gloeckler | 3-6,4-6 |
| ITF M25 - Pardubice | 2021/09/20 08:00 | Noah Schlagenhauf v Michael Gloeckler | 6-3,6-2 |
| UTR Pro Tennis Series - Ricany | 2021/09/18 07:30 | Lawrence Bataljin v Michael Gloeckler | 6-4,5-2 |
| UTR Pro Tennis Series - Ricany | 2021/09/17 09:00 | Michael Gloeckler v Yann Wojcik | 2-6,3-6 |
| UTR Pro Tennis Series - Ricany | 2021/09/15 10:30 | Michael Gloeckler v Jan Satral | 2-6,6-6 |
| UTR Pro Tennis Series - Ricany | 2021/09/14 09:00 | Michael Gloeckler v Yanais Laurent | 1-6,2-6 |
| UTR Pro Tennis Series - Ricany | 2021/09/13 12:00 | Alexander Lazov v Michael Gloeckler | 6-3,6-3 |