 Switzerland: W75 Chiasso - Doubles - Main |
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| Final | Papamichail D./Waltert S. | Appleton E./Papadakis L. | 1:2 (6:4, 4:6, 6:10) | details | 20.04.2024 |
| Semi-finals | Papamichail D./Waltert S. | Radisic N./Wagner A. | 1:0 RET. (7:66, 4:2) | details | 19.04.2024 |
| Quarter-finals | Semenistaja D./Vismane D. | Papamichail D./Waltert S. | 0:2 (5:7, 5:7) | details | 18.04.2024 |
| 1/8-finals | Papamichail D./Waltert S. | Bertoldo J./Meliss V. | 2:0 (6:3, 6:0) | details | 16.04.2024 |
 World: Billie Jean King Cup - Group I - Doubles - Placement matches |
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| | Brunkel L./Munk Mortensen R. | Papamichail D./Sakkari M. | 0:2 (1:6, 1:6) | details | 12.04.2024 |
| | Lachinova A./Ostapenko J. | Matoula M./Papamichail D. | 1:2 (4:6, 6:3, 8:10) | details | 11.04.2024 |
| | Lachinova A./Ostapenko J. | Papamichail D./Sakkari M. | CAN. | details | 11.04.2024 |
| | Ostapenko J./Semenistaja D. | Papamichail D./Sakkari M. | CAN. | details | 11.04.2024 |
| World: Billie Jean King Cup - Group I - Doubles - Main |
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| | Matoula M./Papamichail D. | Burylo M./Sartz-Lunde E. | 2:0 (6:0, 6:4) | details | 10.04.2024 |
| | Papamichail D./Sakkari M. | Burylo M./Sartz-Lunde E. | CAN. | details | 10.04.2024 |
| | Papamichail D./Sakkari M. | Eikeri U./Sartz-Lunde E. | CAN. | details | 10.04.2024 |
| | Milovanovic E./Radivojevic L. | Papamichail D./Sakkari M. | 1:2 (6:4, 3:6, 8:10) | details | 09.04.2024 |
| | Radivojevic L./Stojanovic N. | Papamichail D./Sakkari M. | CAN. | details | 09.04.2024 |
| | Hennemann C. W./Rinaldo Persson K. | Grammatikopoulou V./Papamichail D. | 0:2 (4:6, 5:7) | details | 08.04.2024 |
| | Nilsson L./Taraba Wallberg N. | Grammatikopoulou V./Papamichail D. | CAN. | details | 08.04.2024 |
 Spain: W35 Terrassa - Doubles - Main |
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| Semi-finals | Radisic N./Wagner A. | Curmi F./Papamichail D. | 2:0 (6:4, 6:1) | details | 28.03.2024 |
| Quarter-finals | Curmi F./Papamichail D. | Maristany G./Reyngold E. | WO. | details | 27.03.2024 |
 Cyprus: W35 Alaminos-Larnaca 2 - Doubles - Main |
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| Final | Kung L./Maloney E. | Curmi F./Papamichail D. | 0:2 (3:6, 2:6) | details | 23.03.2024 |
| Semi-finals | Seidel E./Zaytseva K. | Curmi F./Papamichail D. | 0:2 (1:6, 4:6) | details | 22.03.2024 |
| Quarter-finals | Chen X./Christodoulou L. | Curmi F./Papamichail D. | 0:2 (1:6, 1:6) | details | 21.03.2024 |
| Cyprus: W35 Alaminos-Larnaca - Doubles - Main |
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| Semi-finals | Jorge M./Papamichail D. | Lukas T./Mladenovic K. | 0:2 (4:6, 3:6) | details | 15.03.2024 |
| Quarter-finals | Jorge M./Papamichail D. | Middendorf J./Noha Akugue N. | 2:0 (7:65, 6:4) | details | 15.03.2024 |
| 1/8-finals | Jorge M./Papamichail D. | Bulgaru M./Mitu A. | 2:1 (4:6, 6:1, 10:8) | details | 14.03.2024 |
 USA: San Diego - Doubles - Main |
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| 1/8-finals | Papamichail D./Strakhova V. | Day K./Liu C. | 1:2 (62:7, 7:62, 7:10) | details | 26.02.2024 |
 Mexico: W50 Mexico City - Doubles - Main |
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| Quarter-finals | Curmi F./Papamichail D. | Bayerlova M./Hu V. | WO. | details | 22.02.2024 |
| 1/8-finals | Rodriguez V./Sanchez A. S. | Curmi F./Papamichail D. | 0:2 (2:6, 5:7) | details | 21.02.2024 |
| Mexico: W50 Morelia - Doubles - Main |
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| 1/8-finals | Contreras Gomez F./Papamichail D. | Hewitt D./Miroshnichenko V. | 0:2 (5:7, 5:7) | details | 15.02.2024 |
 Australia: United Cup - Mixed Doubles - Main |
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| | Papamichail D./Tsitsipas Pe. | Fung S./Auger-Aliassime F. | 2:0 (7:5, 6:4) | details | 03.01.2024 |
 Uruguay: Montevideo - Doubles - Main |
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| Quarter-finals | Lechemia E./Lee G. | Papamichail D./Strakhova V. | 2:0 (6:3, 7:63) | details | 08.12.2023 |
Italy: W35 Santa Margherita di Pula 2 - Singles - Main
United Arab Emirates: Abu Dhabi - Singles - Qualification