 Greece: M15 Heraklion 3 - Doubles - Main |
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| Quarter-finals | Bakshi A./Tkemaladze Z. | Cubelic K./Welte M. | WO. | details | 22.03.2024 |
| 1/8-finals | Cubelic K./Welte M. | Chetewy U. B./Glavas C. | 2:0 (6:3, 6:2) | details | 19.03.2024 |
| Greece: M15 Heraklion 2 - Doubles - Main |
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| 1/8-finals | Cubelic K./Moraing O. | Lanik T./Puskar S. | 0:2 (1:6, 61:7) | details | 12.03.2024 |
| Greece: M15 Heraklion - Doubles - Main |
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| 1/8-finals | Brown A./Caripi V. | Cubelic K./Gentzsch T. | 2:0 (6:3, 6:4) | details | 07.03.2024 |
 Egypt: M15 Sharm ElSheikh 17 - Doubles - Main |
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| Quarter-finals | Lanik T./Puskar S. | Cubelic K./Revelli G. | 2:1 (7:63, 3:6, 10:7) | details | 23.11.2023 |
| 1/8-finals | Cubelic K./Revelli G. | Consonni N./Sada I. | 2:0 (6:1, 6:1) | details | 21.11.2023 |
| Egypt: M15 Sharm ElSheikh 16 - Doubles - Main |
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| Semi-finals | Lomakin G./Philippov E. | Cubelic K./Revelli G. | 2:1 (7:64, 64:7, 12:10) | details | 17.11.2023 |
| Quarter-finals | Bar Biryukov P./Verbin P. | Cubelic K./Revelli G. | 1:2 (6:4, 65:7, 4:10) | details | 16.11.2023 |
| 1/8-finals | Cubelic K./Revelli G. | Aleshchev A./Nasridinov A. | 2:0 (6:4, 7:5) | details | 14.11.2023 |
 France: M25 Sarreguemines - Doubles - Main |
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| Quarter-finals | Cubelic K./Welte M. | Somani P./Sultanov K. | 0:2 (1:6, 3:6) | details | 26.10.2023 |
| 1/8-finals | Cubelic K./Welte M. | Beauge M./Cunat M. | 2:0 (6:2, 6:2) | details | 25.10.2023 |
 Poland: M15 Koszalin - Doubles - Main |
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| Quarter-finals | Kremenchutskyi I./Kusiewicz P. | Cubelic K./Zielinski M. | WO. | details | 07.09.2023 |
| 1/8-finals | Cubelic K./Zielinski M. | Majchrzak A./Ricci M. | 2:0 (6:4, 6:2) | details | 05.09.2023 |
 Germany: M15 Allershausen - Doubles - Main |
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| 1/8-finals | Merino A./Negritu Ch. | Cubelic K./Markiewicz J. | CAN. | details | 30.08.2023 |
| Germany: M15 Trier - Doubles - Main |
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| Quarter-finals | Cubelic K./Opitz J. | Baum S./Kalina V. | 1:2 (4:6, 6:3, 2:10) | details | 23.08.2023 |
| 1/8-finals | Cubelic K./Opitz J. | Antonio J./Campbell N. | 2:0 (6:3, 6:2) | details | 22.08.2023 |
| Germany: Luedenscheid - Doubles - Main |
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| 1/8-finals | Cubelic K./Pieper M. | Romboli F./Zormann Da Silva M. | 0:2 (5:7, 1:6) | details | 04.08.2023 |
| Germany: M25+H Kassel - Doubles - Main |
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| 1/8-finals | Habib H./Strombachs R. | Cubelic K./Hansen C. | 2:0 (6:3, 7:62) | details | 11.07.2023 |
| Germany: M25 Marburg - Doubles - Main |
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| Semi-finals | Pokorny L./Stodder T. | Cubelic K./Larwig N. | 2:0 (6:1, 6:3) | details | 07.07.2023 |
| Quarter-finals | Barrena A./Otegui J. B. | Cubelic K./Larwig N. | 0:2 (4:6, 0:6) | details | 06.07.2023 |
| 1/8-finals | Cubelic K./Larwig N. | Gomez G./Haliak M. | 2:0 (6:4, 6:2) | details | 05.07.2023 |
| Germany: M15 Kamen - Doubles - Main |
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| Quarter-finals | Boehler D./Cubelic K. | Pearson K./Williams A. J. | 1:2 (2:6, 7:68, 9:11) | details | 29.06.2023 |
| 1/8-finals | Barton H./Schell N. | Boehler D./Cubelic K. | 0:2 (3:6, 3:6) | details | 27.06.2023 |
| Egypt: M25 Sharm ElSheikh 2 - Doubles - Main |
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| Quarter-finals | Fomin S./Kachmazov A. | Cubelic K./Rosenkranz M. | WO. | details | 20.04.2023 |
| 1/8-finals | Cubelic K./Rosenkranz M. | Baiant R./Gregoriou G. | 2:0 (6:3, 6:4) | details | 18.04.2023 |
 Kazakhstan: M15 Aktobe - Doubles - Main |
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| 1/8-finals | Batyutenko M./Khairutdinov A. | Cubelic K./Oetzbach A. | 2:0 (6:3, 6:4) | details | 28.02.2023 |
| Egypt: M15 Sharm ElSheikh - Doubles - Main |
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| Quarter-finals | Dev S D P./Seateun N. | Cubelic K./Uzhylovskyi V. | 2:1 (4:6, 6:3, 11:9) | details | 02.02.2023 |
| 1/8-finals | Butulija B./Zhukov M. | Cubelic K./Uzhylovskyi V. | 0:2 (3:6, 2:6) | details | 31.01.2023 |
 Lithuania: M15 Vilnius - Doubles - Main |
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| Quarter-finals | Beloborodko I./Bielinskyi V. | Cubelic K./Prechtel S. | 2:0 (7:5, 6:4) | details | 18.01.2023 |
| 1/8-finals | Cubelic K./Prechtel S. | Kulakowski M./Lis M. | 2:0 (6:4, 7:5) | details | 17.01.2023 |
| France: M15 Villers-les-Nancy - Doubles - Main |
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| 1/8-finals | Cubelic K./Yang J. | Duncan S./Willis M. | 0:2 (3:6, 62:7) | details | 01.11.2022 |
| France: M25 Sarreguemines - Doubles - Main |
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| Semi-finals | Cubelic K./Yang J. | Bouquier A./Jacq G. | 0:2 (3:6, 5:7) | details | 27.10.2022 |