Kazakhstan: M25 Nur-Sultan 2 - Doubles - Main |
| Quarter-finals | Ignatik U./Yevseyev D. | Kravchuk K./Liutarevich I. | 0:2 (0:6, 0:6) | details | 21.10.2021 |
| 1/8-finals | Ignatik U./Yevseyev D. | Beckley A./Pawlak P. | 2:0 (6:4, 6:3) | details | 19.10.2021 |
Czech Republic: M25 Prague 2 - Doubles - Main |
| Quarter-finals | Duda F./Pavlasek A. | Gengel M./Ignatik U. | 2:0 (7:66, 6:2) | details | 07.10.2021 |
| 1/8-finals | Bolardt A./Stepanek A. | Gengel M./Ignatik U. | 0:2 (3:6, 2:6) | details | 05.10.2021 |
Romania: Sibiu - Doubles - Main |
| 1/8-finals | Cornea V. V./Tsitsipas Pe. | Ignatik U./Ionel N. D. | WO. | details | 30.09.2021 |
Romania: Bucharest - Doubles - Main |
| Quarter-finals | Ignatik U./Madaras N. | Marterer M./Rosol L. | 0:2 (64:7, 3:6) | details | 23.09.2021 |
| 1/8-finals | Ignatik U./Madaras N. | Kopriva V./Lehecka J. | 2:1 (5:7, 7:5, 10:4) | details | 22.09.2021 |
Austria: Tulln - Doubles - Main |
| Quarter-finals | Haerteis J./Hassan B. | Gengel M./Ignatik U. | 2:0 (6:3, 6:3) | details | 09.09.2021 |
| 1/8-finals | Gengel M./Ignatik U. | Jebavy R./Zelenay I. | 1:0 RET. (6:3, 3:0) | details | 08.09.2021 |
Czech Republic: M25 Ricany - Doubles - Main |
| Semi-finals | Gengel M./Ignatik U. | Donski A./Sinclair C. | 0:2 (3:6, 4:6) | details | 03.09.2021 |
| Quarter-finals | Gengel M./Ignatik U. | Cerny M./Paty D. | 2:1 (6:1, 4:6, 10:7) | details | 02.09.2021 |
| 1/8-finals | Gengel M./Ignatik U. | Havlicek M./Janousek L. | 2:0 (6:2, 6:3) | details | 31.08.2021 |
Czech Republic: M25 Prostejov - Doubles - Main |
| Final | Chappell N./Stalder R. | Gengel M./Ignatik U. | 2:1 (3:6, 7:63, 10:8) | details | 20.08.2021 |
| Semi-finals | Rybakov A./Svrcina D. | Gengel M./Ignatik U. | 0:2 (2:6, 4:6) | details | 19.08.2021 |
| Quarter-finals | Miedler L./Sanchez Izquierdo N. | Gengel M./Ignatik U. | 0:2 (3:6, 65:7) | details | 18.08.2021 |
| 1/8-finals | Jurajda A./Valek O. | Gengel M./Ignatik U. | 0:2 (4:6, 3:6) | details | 16.08.2021 |
Czech Republic: Prague 2 - Doubles - Main |
| Quarter-finals | Ignatik U./Jianu F. C. | Oliveira G./Serdarusic N. | 0:2 (3:6, 4:6) | details | 12.08.2021 |