 World: Billie Jean King Cup - Group II - Doubles - Relegation |
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| | Williford K./Zamburek A. C. | De La Caridad Valdes R./Hernandez I. | CAN. | details | 27.07.2024 |
| World: Billie Jean King Cup - Group II - Doubles - Main |
|---|
| | Britez Risso L. F./Franco Martinessi P. | Williford K./Zamburek A. C. | 2:1 (7:5, 5:7, 10:7) | details | 26.07.2024 |
| | Vela Zangroniz N./Weedon K. | Williford K./Zamburek A. C. | 0:2 (5:7, 4:6) | details | 25.07.2024 |
| | Chavez Vicente N. M./Vela Zangroniz N. | Williford K./Zamburek A. C. | CAN. | details | 25.07.2024 |
| | Kettlewell L./O'Neill Garcia D. | Williford K./Zamburek A. C. | 0:2 (63:7, 3:6) | details | 24.07.2024 |
 Dominican Republic: W25 Santo Domingo 3 - Doubles - Main |
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| 1/8-finals | Bowers A./Gell M. | Williford K./Zamburek A. C. | 2:0 (6:3, 7:5) | details | 21.06.2023 |
| Dominican Republic: W25 Santo Domingo 2 - Doubles - Main |
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| Final | Bektas E./Gleason Q. | Williford K./Zamburek A. C. | 2:0 (7:5, 6:4) | details | 12.06.2021 |
| Semi-finals | Williford K./Zamburek A. C. | Contreras Gomez F./Lemaitre T. | 2:1 (6:2, 3:6, 10:6) | details | 11.06.2021 |
| 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 | Williford K./Zamburek A. C. | Mandlik E./Mateas M. | WO. | details | 10.06.2021 |
| Dominican Republic: W25 Santo Domingo - Doubles - Main |
|---|
| 1/8-finals | Alves C./Gamarra Martins I. | Williford K./Zamburek A. C. | 2:0 (6:2, 6:4) | details | 01.06.2021 |
