 Spain: Madrid - Singles - Main |
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| 1/64-finals | Kovacevic A. | Medjedovic H. | 1:2 (6:4, 5:7, 4:6) | details | 25.04.2024 |
| Spain: Madrid - Singles - Qualification |
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| Final | Kovacevic A. | Vacherot V. | 2:0 (6:4, 6:2) | details | 23.04.2024 |
| Semi-finals | Kovacevic A. | Gigante M. | 2:0 (6:3, 6:3) | details | 22.04.2024 |
 Romania: Bucharest - Singles - Main |
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| 1/16-finals | Albot R. | Kovacevic A. | 2:1 (7:64, 4:6, 6:1) | details | 16.04.2024 |
 USA: Houston - Singles - Main |
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| 1/8-finals | Thompson J. | Kovacevic A. | 2:1 (4:6, 7:61, 7:67) | details | 05.04.2024 |
| 1/16-finals | Kokkinakis T. | Kovacevic A. | 1:2 (63:7, 7:62, 4:6) | details | 03.04.2024 |
| USA: Miami - Singles - Main |
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| 1/64-finals | Kovacevic A. | Marozsan F. | 0:2 (3:6, 2:6) | details | 21.03.2024 |
| USA: Miami - Singles - Qualification |
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| Final | Kovacevic A. | Bergs Z. | 2:0 (7:62, 6:2) | details | 19.03.2024 |
| Semi-finals | Kovacevic A. | Kypson P. | 2:0 (6:2, 7:65) | details | 18.03.2024 |
| USA: Indian Wells - Singles - Main |
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| 1/64-finals | Kovacevic A. | Zhang Z. | 1:2 (7:62, 3:6, 5:7) | details | 08.03.2024 |
 Mexico: Acapulco - Singles - Main |
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| 1/8-finals | Kovacevic A. | Rune H. | 0:2 (65:7, 2:6) | details | 29.02.2024 |
| 1/16-finals | Kovacevic A. | Thompson J. | 2:1 (6:3, 5:7, 6:4) | details | 28.02.2024 |
| Mexico: Acapulco - Singles - Qualification |
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| Final | Hijikata R. | Kovacevic A. | 1:2 (6:4, 2:6, 64:7) | details | 26.02.2024 |
| Semi-finals | Mejia N. | Kovacevic A. | 1:2 (4:6, 6:4, 2:6) | details | 25.02.2024 |
| Mexico: Los Cabos - Singles - Main |
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| Quarter-finals | Kovacevic A. | Tsitsipas S. | 0:2 (61:7, 3:6) | details | 23.02.2024 |
| 1/8-finals | Hijikata R. | Kovacevic A. | 1:2 (3:6, 6:4, 4:6) | details | 22.02.2024 |
| 1/16-finals | Kovacevic A. | Holt B. | 2:0 (6:1, 6:4) | details | 20.02.2024 |
| Mexico: Los Cabos - Singles - Qualification |
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| Final | Kovacevic A. | Svajda Z. | 2:0 (6:4, 6:4) | details | 19.02.2024 |
| Semi-finals | Kovacevic A. | Johnson S. | 2:0 (7:5, 6:3) | details | 18.02.2024 |
| USA: Delray Beach - Singles - Main |
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| 1/16-finals | Kovacevic A. | Moreno De Alboran N. | 0:2 (2:6, 63:7) | details | 13.02.2024 |
| USA: Dallas - Singles - Main |
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| 1/16-finals | Koepfer D. | Kovacevic A. | 2:0 (6:4, 7:65) | details | 07.02.2024 |
 Australia: Australian Open - Singles - Main |
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| 1/32-finals | Kovacevic A. | Khachanov K. | 1:3 (4:6, 3:6, 6:4, 3:6) | details | 17.01.2024 |
| 1/64-finals | Tabilo A. | Kovacevic A. | 2:3 (7:62, 67:7, 6:1, 1:6, 3:6) | details | 15.01.2024 |
| Australia: Australian Open - Singles - Qualification |
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| Final | Kovacevic A. | Mochizuki S. | 2:1 (1:6, 6:2, 6:2) | details | 12.01.2024 |
| Semi-finals | Kovacevic A. | Sachko V. | 2:0 (7:65, 7:64) | details | 11.01.2024 |
| Quarter-finals | Kovacevic A. | Onclin G. | 2:1 (6:3, 69:7, 7:67) | details | 10.01.2024 |
| Australia: Brisbane - Singles - Qualification |
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| Final | Machac T. | Kovacevic A. | 2:0 (6:4, 6:2) | details | 31.12.2023 |
| Semi-finals | Gaio F. | Kovacevic A. | 0:2 (65:7, 2:6) | details | 30.12.2023 |
 Chile: Temuco - Singles - Main |
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| Final | Klier Junior G. | Kovacevic A. | 1:2 (6:4, 3:6, 3:6) | details | 03.12.2023 |
| Semi-finals | Kovacevic A. | Vacherot V. | 2:1 (64:7, 6:0, 6:3) | details | 02.12.2023 |
| Quarter-finals | Rodriguez Taverna S. | Kovacevic A. | 0:2 (3:6, 2:6) | details | 02.12.2023 |
| 1/8-finals | Villanueva G. | Kovacevic A. | 0:2 (4:6, 65:7) | details | 29.11.2023 |
| 1/16-finals | Gomez F. A. | Kovacevic A. | 1:2 (7:64, 64:7, 62:7) | details | 27.11.2023 |
 Brazil: Brasilia - Singles - Main |
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| 1/16-finals | Kovacevic A. | Fonseca J. | 1:2 (3:6, 6:3, 62:7) | details | 21.11.2023 |
| USA: Champaign - Singles - Main |
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| Quarter-finals | Kovacevic A. | Kypson P. | 1:2 (62:7, 6:4, 3:6) | details | 18.11.2023 |
| 1/8-finals | Kovacevic A. | Ozolins K. | 2:0 (7:65, 6:3) | details | 16.11.2023 |
| 1/16-finals | Kovacevic A. | Williams C. | 2:1 (6:3, 2:6, 6:4) | details | 14.11.2023 |
| USA: Knoxville - Singles - Main |
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| 1/16-finals | Holt B. | Kovacevic A. | 2:1 (6:4, 3:6, 7:61) | details | 06.11.2023 |
 China: Shenzhen 3 - Singles - Main |
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| Semi-finals | Wong C. | Kovacevic A. | WO. | details | 21.10.2023 |
| Quarter-finals | Giustino L. | Kovacevic A. | 1:2 (3:6, 6:3, 3:6) | details | 20.10.2023 |
| 1/8-finals | Zhukayev B. | Kovacevic A. | 1:2 (4:6, 7:61, 0:6) | details | 18.10.2023 |
| 1/16-finals | Chen C. | Kovacevic A. | 0:2 (3:6, 1:6) | details | 17.10.2023 |