 Greece: M15 Heraklion - Doubles - Main |
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| Quarter-finals | Kielan S./Latinovic S. | Antonopoulos C./Kountourakis I. | 2:0 (7:64, 6:2) | detalhes | 20.03.2025 |
| 1/8-finals | Antonopoulos C./Kountourakis I. | Chatziavraam N./Lafazanos A. | 2:0 (6:2, 6:2) | detalhes | 18.03.2025 |
| Greece: Hersonissos 2 - Doubles - Main |
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| 1/8-finals | Kirkin E./Molleker R. | Kountourakis I./Schinas S. | 2:0 (6:2, 6:4) | detalhes | 10.03.2025 |
 Egypt: M15 Sharm ElSheikh 4 - Doubles - Main |
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| 1/8-finals | Kountourakis I./Moroni F. | Jans J./Tamm K. | 0:2 (3:6, 3:6) | detalhes | 18.02.2025 |
| Egypt: M15 Sharm ElSheikh 2 - Doubles - Main |
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| 1/8-finals | Arutiunian E./Ostapenkov D. | Kountourakis I./Purtseladze S. | CAN. | detalhes | 04.02.2025 |
| Greece: M25 Heraklion - Doubles - Main |
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| 1/8-finals | Balshaw F./Kountourakis I. | Grevelius E./Heinonen A. | 0:2 (4:6, 4:6) | detalhes | 22.10.2024 |
| Egypt: M15 Sharm ElSheikh 11 - Doubles - Main |
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| Quarter-finals | Ivanov S./Kountourakis I. | Bassem Sobhy M./Zakaria F. | 0:2 (4:6, 2:6) | detalhes | 26.09.2024 |
| 1/8-finals | Ivanov S./Kountourakis I. | Blazka D./Gengel M. | 2:0 (7:5, 7:5) | detalhes | 24.09.2024 |
| Egypt: M15 Sharm ElSheikh 10 - Doubles - Main |
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| 1/8-finals | Angeloni L./Kountourakis I. | El Sallaly A./Ianin N. | 0:2 (3:6, 4:6) | detalhes | 17.09.2024 |
 Serbia: M15 Pirot - Doubles - Main |
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| Quarter-finals | Kountourakis I./Obradovic D. | Lalami Laaroussi Y./Latinovic S. | 0:2 (1:6, 4:6) | detalhes | 22.08.2024 |
| 1/8-finals | Krapivin M./Stanisavljevic M. | Kountourakis I./Obradovic D. | 1:2 (6:3, 3:6, 9:11) | detalhes | 21.08.2024 |
| Serbia: M15 Kursumlijska Banja 13 - Doubles - Main |
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| 1/8-finals | Saritas G./Turker M. N. | Kountourakis I./Schifris J. | 2:1 (7:65, 3:6, 10:7) | detalhes | 31.07.2024 |
| Serbia: M15 Kursumlijska Banja 12 - Doubles - Main |
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| Semi-finals | Aboian L./Falabella L. A. | Kountourakis I./Petrovic D. | 2:0 (6:3, 6:3) | detalhes | 26.07.2024 |
| Quarter-finals | Kountourakis I./Petrovic D. | Saritas G./Turker M. N. | 2:1 (6:4, 5:7, 10:7) | detalhes | 25.07.2024 |
| 1/8-finals | Gomez G./Novakovic N. | Kountourakis I./Petrovic D. | 0:2 (1:6, 65:7) | detalhes | 24.07.2024 |
 Turkey: M15 Antalya 5 - Doubles - Main |
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| 1/8-finals | Lee K./Wang K. | Fumagalli F./Kountourakis I. | 2:0 (6:1, 7:63) | detalhes | 05.03.2024 |
| Greece: M25 Heraklion 3 - Doubles - Main |
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| 1/8-finals | Calzi R./Weintraub B. | Kountourakis I./Pietri B. | 2:0 (6:3, 7:64) | detalhes | 28.11.2023 |
| Greece: M15 Heraklion 5 - Doubles - Main |
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| Quarter-finals | Freund S./Papa C. | Kountourakis I./Sakellaridis D. | 2:1 (68:7, 6:2, 12:10) | detalhes | 16.11.2023 |
| 1/8-finals | Kountourakis I./Sakellaridis D. | Holban V./Kypriotis E. | 2:0 (6:1, 7:63) | detalhes | 14.11.2023 |
| Serbia: M15 Kursumlijska Banja 9 - Doubles - Main |
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| 1/8-finals | Kountourakis I./Valle F. | Pisaric A./Radjenovic V. | 1:2 (6:4, 3:6, 3:10) | detalhes | 20.09.2023 |
| Serbia: M15 Pirot - Doubles - Main |
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| Quarter-finals | Boureau A./Kountourakis I. | Jovic V./Pavlovic L. | 0:2 (3:6, 4:6) | detalhes | 07.09.2023 |
| 1/8-finals | Krapivin M./Pogosian S. | Boureau A./Kountourakis I. | 1:2 (6:3, 4:6, 8:10) | detalhes | 06.09.2023 |
| Serbia: M15 Kursumlijska Banja 7 - Doubles - Main |
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| Quarter-finals | Ivanov M./Kountourakis I. | Gandolfi G./Misasi G. | 0:2 (4:6, 1:6) | detalhes | 31.08.2023 |
Germany: M15 Cadolzburg - Singles - Main
