Stadium: Court 1 Round: 28 Ground: Carpet indoor
| Challenger Ismaning - MP | 2021/10/28 14:00 | Gengel/Machac v Haase/Hermans | 7-6,6-2 |
| Challenger Ismaning - MP | 2021/10/27 19:35 | Jebavy/Nielsen v Gengel/Machac | 2-6,4-6 |
| Challenger Rennes - MP | 2021/09/18 11:00 | Gengel/Machac v Stevens/Van Rijthoven | 7-6,5-7,3-10 |
| Challenger Rennes - MP | 2021/09/17 10:55 | Gengel/Machac v Lamasine/Simon | 7-6,6-1 |
| Challenger Rennes - MP | 2021/09/16 14:00 | Pel/Qureshi v Gengel/Machac | 6-7,6-7 |
| Challenger Rennes - MP | 2021/09/15 11:00 | Gengel/Machac v Kamke/Maden | 6-7,6-2,10-8 |
| Challenger Ismaning - MP | 2021/10/28 17:40 | Sancic/Sitak v Cornea/Ramanathan | 6-4,6-4 |
| Challenger Ismaning - MP | 2021/10/27 13:30 | Sancic/Sitak v Cozbinov/Cressy | 7-6,5-7,10-4 |
| Challenger Losinj - MP | 2021/10/23 10:00 | Cornea/Kirkin v Sancic/Sitak | 0-6,6-0,10-5 |
| Challenger Losinj - MP | 2021/10/21 14:40 | Haase/Hermans v Sancic/Sitak | 5-7,4-6 |
| Challenger Losinj - MP | 2021/10/20 14:50 | Alvarez Varona/Kravchenko v Sancic/Sitak | 6-7,1-6 |
| Challenger Alicante - MP | 2021/10/12 14:45 | Sancic/Sitak v Nava/Verdasco | 3-6,6-4,6-10 |
| ATP San Diego - MP | 2021/09/30 01:20 | Sancic/Sitak v Thompson/Withrow | 3-6,4-6 |
| Challenger Istanbul - MP | 2021/09/18 13:20 | Sancic/Sitak v Albot/Cozbinov | 6-4,5-7,9-11 |