 Germany: Ismaning - Doubles - Main |
|---|
| Semi-finals | Gengel M./Machac T. | Sancic A./Sitak A. | 2:1 (7:65, 2:6, 10:7) | details | 29.10.2021 |
| Quarter-finals | Sancic A./Sitak A. | Cornea V. V./Ramanathan R. | 2:0 (6:4, 6:4) | details | 28.10.2021 |
| 1/8-finals | Sancic A./Sitak A. | Cozbinov A./Cressy M. | 2:1 (7:64, 5:7, 10:4) | details | 27.10.2021 |
 Croatia: Losinj - Doubles - Main |
|---|
| Semi-finals | Cornea V. V./Kirkin E. | Sancic A./Sitak A. | 2:1 (0:6, 6:0, 10:5) | details | 23.10.2021 |
| Quarter-finals | Haase R./Hermans M. | Sancic A./Sitak A. | 0:2 (5:7, 4:6) | details | 21.10.2021 |
| 1/8-finals | Alvarez Varona N./Kravchenko G. | Sancic A./Sitak A. | 0:2 (63:7, 1:6) | details | 20.10.2021 |
 Spain: Alicante - Doubles - Main |
|---|
| 1/8-finals | Sancic A./Sitak A. | Nava E./Verdasco F. | 1:2 (3:6, 6:4, 6:10) | details | 12.10.2021 |
 USA: San Diego - Doubles - Main |
|---|
| 1/8-finals | Sancic A./Sitak A. | Thompson J./Withrow J. | 0:2 (3:6, 4:6) | details | 30.09.2021 |
 Turkey: Istanbul 2 - Doubles - Main |
|---|
| Final | Sancic A./Sitak A. | Albot R./Cozbinov A. | 1:2 (6:4, 5:7, 9:11) | details | 18.09.2021 |
| Semi-finals | Sancic A./Sitak A. | Gonzales R./Johnson H. | 2:1 (4:6, 6:2, 10:5) | details | 17.09.2021 |
| Quarter-finals | Sancic A./Sitak A. | Blancaneaux G./Fabbiano T. | 2:1 (6:0, 62:7, 13:11) | details | 16.09.2021 |
| 1/8-finals | Sancic A./Sitak A. | Agabigun S./Altuna T. | 2:0 (6:2, 6:3) | details | 15.09.2021 |
 France: St. Tropez - Doubles - Main |
|---|
| Final | Arneodo R./Guinard M. | Sancic A./Sitak A. | 0:2 (65:7, 4:6) | details | 04.09.2021 |
| Semi-finals | Grenier H./Muller A. | Sancic A./Sitak A. | 1:2 (2:6, 6:3, 5:10) | details | 04.09.2021 |
| Quarter-finals | Chazal M./Tessa L. | Sancic A./Sitak A. | 0:2 (2:6, 4:6) | details | 02.09.2021 |
| 1/8-finals | Fabbiano T./Masur D. | Sancic A./Sitak A. | 0:2 (63:7, 2:6) | details | 01.09.2021 |
| Germany: Luedenscheid - Doubles - Main |
|---|
| 1/8-finals | Moeller M./Sandkaulen T. | Sancic A./Sitak A. | 2:0 (6:1, 6:2) | details | 18.08.2021 |
| Germany: Meerbusch - Doubles - Main |
|---|
| Semi-finals | Sancic A./Sitak A. | Brown D./Haase R. | 0:2 (4:6, 4:6) | details | 13.08.2021 |
| Quarter-finals | Molchanov D./Nedovyesov A. | Sancic A./Sitak A. | 0:2 (64:7, 5:7) | details | 12.08.2021 |
| 1/8-finals | Sancic A./Sitak A. | Fallert F./Haerteis J. | 2:0 (7:5, 6:4) | details | 10.08.2021 |
