 Spain: M25 Tarragona - Doubles - Main |
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| Quarter-finals | Casanova H./Wenger D. | Buse I./Melero K. A. | 2:1 (6:3, 2:6, 10:7) | details | 28.03.2024 |
| 1/8-finals | Buse I./Melero K. A. | Ambarzumjan E./Dedura-Palomero M. | 2:0 (6:2, 6:3) | details | 27.03.2024 |
| Spain: M15 Les Franqueses del Valles - Doubles - Main |
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| Semi-finals | Melero K. A./Pedrico Kravtsov A. | Kravchenko G./Nedelchev N. | 0:2 (4:6, 4:6) | details | 15.03.2024 |
| Quarter-finals | Melero K. A./Pedrico Kravtsov A. | Jones M./Wallart E. | 2:0 (6:3, 6:4) | details | 14.03.2024 |
| 1/8-finals | Melero K. A./Pedrico Kravtsov A. | De Almeida Santos P. A./De La Vega R. | 2:0 (6:2, 6:1) | details | 12.03.2024 |
| Spain: M15 Torello - Doubles - Main |
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| Quarter-finals | Melero K. A./Pedrico Kravtsov A. | Davis J./Hussey G. | 0:2 (3:6, 0:6) | details | 06.03.2024 |
| 1/8-finals | Forcano I./Sibille I. | Melero K. A./Pedrico Kravtsov A. | 0:2 (2:6, 4:6) | details | 05.03.2024 |
| Spain: M15 Madrid 2 - Doubles - Main |
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| Semi-finals | Melero K. A./Sanchez Quilez A. | Catanzariti A.J./Reynolds F. | 0:2 (4:6, 3:6) | details | 01.12.2023 |
| Quarter-finals | Melero K. A./Sanchez Quilez A. | Benzal Alia I./Puig Molin D. | 2:0 (6:3, 6:3) | details | 30.11.2023 |
| 1/8-finals | Perez Sanz D./Vasa E. | Melero K. A./Sanchez Quilez A. | 1:2 (6:3, 4:6, 8:10) | details | 28.11.2023 |
| Spain: M15 Valencia - Doubles - Main |
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| Quarter-finals | Reynolds F./Uzhylovskyi V. | Melero K. A./Sanchez Quilez A. | WO. | details | 16.11.2023 |
| 1/8-finals | Alvarado P./Stepanian A. | Melero K. A./Sanchez Quilez A. | 0:2 (4:6, 2:6) | details | 14.11.2023 |
| Spain: M25 Benicarlo - Doubles - Main |
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| Quarter-finals | Echeverria J./Moro Canas A. | Melero K. A./Sanchez Quilez A. | WO. | details | 09.11.2023 |
| 1/8-finals | Bogo E./Escurra Isnardi H. J. | Melero K. A./Sanchez Quilez A. | 0:2 (1:6, 4:6) | details | 07.11.2023 |
| Spain: M15 Castellon - Doubles - Main |
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| Semi-finals | Melero K. A./Sanchez Quilez A. | Mishkin K./Shvets V. | 0:2 (2:6, 4:6) | details | 19.10.2023 |
| Quarter-finals | Naharro D./Pujol Navarro B. | Melero K. A./Sanchez Quilez A. | 0:2 (3:6, 3:6) | details | 18.10.2023 |
| 1/8-finals | Oliver Moratalla V./Peiro Serrano A. | Melero K. A./Sanchez Quilez A. | 0:2 (1:6, 2:6) | details | 17.10.2023 |
| Spain: M15 Vigo - Doubles - Main |
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| Quarter-finals | Jong A. M./Timmermans J. | Melero K. A./Sanchez Quilez A. | 2:0 (7:5, 6:2) | details | 12.10.2023 |
| 1/8-finals | Melero K. A./Sanchez Quilez A. | Busoms Puig J./Cervantes Tomas L. | 2:0 (6:3, 6:3) | details | 10.10.2023 |
| Spain: M25 Zaragoza - Doubles - Main |
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| 1/8-finals | De Krom M./Nijboer R. | Melero K. A./Pujol Navarro B. | 2:0 (6:3, 6:4) | details | 03.10.2023 |
 USA: US Open - Doubles - Main |
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| 1/8-finals | Dahlin M./Ojakaar O. | Bonding O./Melero K. A. | 2:0 (6:2, 7:5) | details | 06.09.2023 |
| 1/16-finals | Filip J./Hrazdil J. | Bonding O./Melero K. A. | 1:2 (7:65, 63:7, 6:10) | details | 05.09.2023 |
 United Kingdom: Wimbledon - Doubles - Main |
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| Quarter-finals | Melero K. A./Pacheco Mendez R. | Djuric B./Gea A. | 0:2 (3:6, 63:7) | details | 13.07.2023 |
| 1/8-finals | Melero K. A./Pacheco Mendez R. | Cavallo F./Parisca I. | 2:0 (7:5, 6:4) | details | 12.07.2023 |
| 1/16-finals | Melero K. A./Pacheco Mendez R. | Kalina V./Kriznik M. | 2:1 (65:7, 6:4, 11:9) | details | 10.07.2023 |