 Dominican Republic: W25 Santo Domingo 2 - Doubles - Main |
|---|
| Quarter-finals | Williford K./Zamburek A. C. | Appel M./Lincer O. | 2:1 (6:3, 5:7, 10:8) | details | 10.06.2021 |
| 1/8-finals | Appel M./Lincer O. | McAdoo R./Perrin C. | 2:1 (7:5, 4:6, 10:3) | details | 10.06.2021 |
 Turkey: W15 Antalya 10 - Doubles - Main |
|---|
| 1/8-finals | Arshinkova P./Topalova G. | Anil C./Appel M. | 2:0 (7:5, 6:4) | details | 09.03.2021 |
| Turkey: W15 Antalya 9 - Doubles - Main |
|---|
| 1/8-finals | Anil C./Appel M. | Ortenzi J./Zeballos N. | 0:2 (2:6, 64:7) | details | 02.03.2021 |
 Mexico: W15 Cancun 7 - Doubles - Main |
|---|
| Quarter-finals | Anttila A./Appel M. | Closs M./Williford K. | CAN. | details | 12.03.2020 |
| 1/8-finals | Anttila A./Appel M. | Collens B./Tran D. | 2:0 (6:3, 6:1) | details | 10.03.2020 |
| Mexico: W15 Cancun 2 - Doubles - Main |
|---|
| 1/8-finals | Kissell J./Kukharchuk N. | Appel M./Schaefer D. | 2:0 (6:2, 6:1) | details | 21.01.2020 |
| Mexico: W15 Cancun - Doubles - Main |
|---|
| Semi-finals | Rodriguez V./Sewing S. | Appel M./Sysoeva A. | 2:0 (6:2, 6:1) | details | 17.01.2020 |
| Quarter-finals | Davis E./Ng T. | Appel M./Sysoeva A. | 0:2 (5:7, 4:6) | details | 16.01.2020 |
| 1/8-finals | Hitt Z./Uchiyama H. | Appel M./Sysoeva A. | 0:2 (2:6, 1:6) | details | 14.01.2020 |
