Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Monastir MD | 2021/07/06 13:50 | Vilardo/Vincent Ruggeri v Descotte/Rodriguez Taverna | 6-3,3-6,5-10 |
| ITF M15 Castelo Branco MD | 2021/07/27 13:40 | Gengel/Langmajer v Giacomini/Thirouin | 7-5,1-6,4-10 |
| ITF M25 Idanha-A-Nova MD | 2021/07/20 12:25 | Cacao/Ho v Gengel/Langmajer | 6-4,6-4 |
| Challenger Braunschweig MD | 2021/07/07 15:50 | Sabanov/Sabanov v Gengel/Langmajer | 6-1,4-6,10-3 |
| ITF M15 Gaiba MD | 2021/06/09 17:00 | Gengel/Langmajer v Bellucci/Rottoli | 3-6,2-6 |
| ITF M25 Most MD | 2021/05/26 12:45 | Gengel/Langmajer v Krumich/Vrbensky | 4-6,2-6 |
| ITF M15 Tbilisi MD | 2021/05/18 14:25 | Bakshi/Tkemaladze v Gengel/Langmajer | 6-1,3-6,10-4 |
| ITF M15 Jerusalem MD | 2021/05/11 06:30 | Gengel/Langmajer v Cozbinov/Deviatiarov | 0-6,6-4,7-10 |
| ITF M15 Sharm El Sheikh MD | 2021/03/16 10:40 | Hsu/Shimizu v Gengel/Langmajer | 7-6,6-7,10-1 |