 Italy: Santa Margherita Di Pula 14 - Singles - Main |
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| 1/16-finals | Apostol A. S. | Diarra G. | 0:2 (4:6, 1:6) | details | 15.10.2018 |
| Italy: Santa Margherita Di Pula 12 - Singles - Main |
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| 1/16-finals | Basso A. | Apostol A. S. | 2:0 (6:1, 6:2) | details | 10.10.2017 |
| Italy: Santa Margherita Di Pula 11 - Singles - Main |
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| 1/8-finals | Apostol A. S. | Kecmanovic M. | 0:2 (0:6, 0:6) | details | 04.10.2017 |
| 1/16-finals | Apostol A. S. | Gohlke D. | 2:0 (6:2, 6:3) | details | 03.10.2017 |
| Italy: Santa Margherita Di Pula 2 - Singles - Main |
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| 1/16-finals | Prevosto L. | Apostol A. S. | 2:0 (6:2, 7:66) | details | 27.03.2017 |
| Italy: Santa Margherita Di Pula - Singles - Main |
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| 1/16-finals | Campo A. | Apostol A. S. | 2:1 (6:2, 65:7, 6:2) | details | 21.03.2017 |
 Spain: Manacor (Mallorca) 2 - Singles - Main |
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| 1/16-finals | Apostol A. S. | Cachin P. | 0:2 (0:6, 2:6) | details | 25.01.2017 |
 Romania: Sibiu - Singles - Main |
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| 1/8-finals | Lajovic D. | Apostol A. S. | 0:0 RET. (3:0) | details | 24.09.2015 |
| 1/16-finals | Giner M. | Apostol A. S. | 1:2 (3:6, 6:1, 5:7) | details | 22.09.2015 |
| Romania: Bucharest - Singles - Qualification |
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| Quarter-finals | Apostol A. S. | Berankis R. | 0:2 (1:6, 3:6) | details | 20.04.2014 |
| Romania: Pitesti - Singles - Main |
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| 1/8-finals | Michon A. | Apostol A. S. | 2:0 (6:1, 6:3) | details | 10.07.2013 |
| 1/16-finals | Grigoriu P. | Apostol A. S. | 0:2 (4:6, 3:6) | details | 09.07.2013 |
| Romania: Cluj-Napoca - Singles - Main |
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| 1/16-finals | Apostol A. S. | Vibert F. | 0:2 (3:6, 5:7) | details | 14.05.2013 |
 USA: Niceville - Singles - Main |
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| 1/16-finals | Edmund K. | Apostol A. S. | 2:0 (6:1, 7:6) | details | 07.11.2012 |
| Romania: Bucharest - Singles - Main |
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| 1/16-finals | Apostol A. S. | Torroni G. | 0:2 (5:7, 1:6) | details | 04.07.2012 |
| Romania: Bucharest - Singles - Qualification |
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| Quarter-finals | Savulescu A. | Apostol A. S. | 2:0 (6:4, 6:3) | details | 21.04.2012 |
Turkey: M15 Antalya 17 - Doubles - Main