 Turkey: M15 Antalya 9 - Doubles - Main |
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| Quarter-finals | Bielinskyi V./Orlov V. | Gavrielides L./Kelm Y. | 2:0 (6:3, 7:60) | details | 04.04.2024 |
| 1/8-finals | Gavrielides L./Kelm Y. | Carnevalle L./Schiessl J. E. | 2:0 (6:3, 6:3) | details | 03.04.2024 |
| Turkey: M15 Antalya 7 - Doubles - Main |
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| 1/8-finals | Gavrielides L./Lane L. | Klok D./Metreveli A. | 1:2 (6:4, 4:6, 10:12) | details | 19.03.2024 |
 Germany: Hamburg - Doubles - Main |
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| 1/8-finals | Duncan S./Stewart H. | Gavrielides L./Kuhn N. | 2:1 (6:3, 3:6, 10:3) | details | 12.03.2024 |
 Spain: M15 Villena 2 - Doubles - Main |
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| Quarter-finals | Gavrielides L./Sanchez Quilez A. | Davis J./Summers M. | 0:2 (3:6, 2:6) | details | 29.02.2024 |
| 1/8-finals | Alvarez Sarmiento M. L./Rocens M. | Gavrielides L./Sanchez Quilez A. | 0:2 (4:6, 5:7) | details | 27.02.2024 |
| Spain: M15 Villena - Doubles - Main |
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| Final | Gavrielides L./Sanchez Quilez A. | Knaff A./Soriano Barrera A. | 2:0 (6:2, 6:4) | details | 24.02.2024 |
| Semi-finals | De Krom M./Fernandez Flores D. | Gavrielides L./Sanchez Quilez A. | 1:2 (3:6, 7:5, 5:10) | details | 23.02.2024 |
| Quarter-finals | Butvilas E./Sun F. | Gavrielides L./Sanchez Quilez A. | 1:2 (3:6, 6:4, 7:10) | details | 22.02.2024 |
| 1/8-finals | Harsh R./Xu K. Q. | Gavrielides L./Sanchez Quilez A. | 0:2 (2:6, 2:6) | details | 20.02.2024 |
| Germany: M15 Oberhaching - Doubles - Main |
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| 1/8-finals | Gavrielides L./Yang J. | Masur D./Poljicak M. | WO. | details | 13.02.2024 |
| Spain: M15 Manacor 2 - Doubles - Main |
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| Semi-finals | Kym J./Soriano Barrera A. | Gavrielides L./Mikrut L. | 2:0 (6:4, 6:3) | details | 19.01.2024 |
| Quarter-finals | Arcila A./Honda N. | Gavrielides L./Mikrut L. | 1:2 (7:64, 3:6, 5:10) | details | 18.01.2024 |
| 1/8-finals | Gavrielides L./Mikrut L. | Compagnucci T./Karol M. | 2:0 (6:3, 6:2) | details | 17.01.2024 |
| Spain: M15 Manacor - Doubles - Main |
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| Final | De Krom M./Nijboer R. | Gavrielides L./Wiskandt M. | 2:0 (7:5, 6:4) | details | 13.01.2024 |
| Semi-finals | Gavrielides L./Wiskandt M. | Morazzi M./Trouve N. | 2:1 (4:6, 6:3, 10:8) | details | 12.01.2024 |
| Quarter-finals | Fenty A./Rybakov A. | Gavrielides L./Wiskandt M. | 0:1 RET. (61:7, 1:3) | details | 12.01.2024 |
| 1/8-finals | Gavrielides L./Wiskandt M. | Calzi R./Giacomini L. | 2:1 (4:6, 6:3, 10:7) | details | 09.01.2024 |
 Tunisia: M15 Monastir 46 - Doubles - Main |
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| 1/8-finals | Gavrielides L./Wiskandt M. | Beaupain S./Bourgois C. | 0:2 (3:6, 2:6) | details | 14.11.2023 |
| Tunisia: M15 Monastir 45 - Doubles - Main |
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| Quarter-finals | Merino A./Negritu Ch. | Donald M./Gavrielides L. | 2:0 (7:5, 7:5) | details | 09.11.2023 |
| 1/8-finals | Aubriot A./Morlet A. | Donald M./Gavrielides L. | 0:2 (4:6, 4:6) | details | 07.11.2023 |
France: M15 Grenoble - Singles - Main