 World: Others matches - Singles - Main |
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| | Arn G. | Lemoine Q. | CAN. | details | 28.08.2020 |
| | Arn G. | Ponomar L. | 0:2 (4:6, 2:6) | details | 27.08.2020 |
| | Arn G. | Vanlangendonck E. | 2:0 (6:1, 6:1) | details | 26.08.2020 |
| | Arn G. | Ambrosio S. | 2:0 (6:3, 7:64) | details | 25.08.2020 |
| | Arn G. | Kanev K. | 2:0 (6:3, 6:3) | details | 24.08.2020 |
 France: W25 Macon - Singles - Main |
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| 1/8-finals | Ponchet J. | Arn G. | 2:0 (6:3, 6:3) | details | 27.02.2020 |
| 1/16-finals | Arn G. | Ferrando C. | 2:0 (6:1, 6:4) | details | 26.02.2020 |
 Hungary: Szekesfehervar 2 - Singles - Main |
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| 1/16-finals | Ignatik A. | Arn G. | 1:0 RET. (6:0, 0:0) | details | 23.10.2019 |
| Hungary: Szekesfehervar - Singles - Main |
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| 1/16-finals | Arn G. | Kawa K. | 1:2 (7:65, 2:6, 1:6) | details | 16.10.2019 |
 China: Nanchang - Singles - Main |
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| 1/16-finals | Baindl K. | Arn G. | 2:0 (6:2, 6:1) | details | 09.09.2019 |
| China: Nanchang - Singles - Qualification |
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| Final | McPhee K. | Arn G. | 0:2 (60:7, 68:7) | details | 08.09.2019 |
| Semi-finals | Zhang Y. | Arn G. | 0:2 (2:6, 2:6) | details | 07.09.2019 |
 Kazakhstan: W60 Nur-Sultan - Singles - Main |
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| 1/16-finals | Arn G. | Shymanovich I. | 1:2 (6:2, 3:6, 1:6) | details | 17.07.2019 |
| France: W60 Saint-Gaudens - Singles - Main |
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| 1/16-finals | Arn G. | Tomova V. | 0:2 (0:6, 2:6) | details | 15.05.2019 |
 Mexico: Monterrey - Singles - Main |
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| 1/8-finals | Mladenovic K. | Arn G. | 2:0 (6:0, 6:2) | details | 04.04.2019 |
| 1/16-finals | Arn G. | Arruabarrena L. | 2:1 (7:5, 3:6, 7:5) | details | 02.04.2019 |
| Mexico: Monterrey - Singles - Qualification |
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| Final | Haddad Maia B. | Arn G. | 2:0 (6:4, 7:5) | details | 01.04.2019 |
| Semi-finals | Arn G. | Lao D. | 2:0 (6:4, 6:1) | details | 31.03.2019 |
| Quarter-finals | Arn G. | Rosca A. | 2:1 (62:7, 6:4, 6:1) | details | 30.03.2019 |
| Hungary: Budapest - Singles - Main |
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| 1/16-finals | Arn G. | Alexandrova E. | 1:2 (6:4, 1:6, 4:6) | details | 20.02.2019 |
| Hungary: Budapest - Singles - Qualification |
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| Final | Badosa P. | Arn G. | 0:2 (63:7, 0:6) | details | 18.02.2019 |
| Semi-finals | Arn G. | Gorgodze E. | 2:1 (7:5, 1:6, 6:2) | details | 17.02.2019 |
| France: Limoges - Singles - Main |
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| 1/16-finals | Bogdan A. | Arn G. | 2:0 (6:2, 7:5) | details | 05.11.2018 |
 Luxembourg: Luxembourg - Singles - Qualification |
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| Quarter-finals | Arn G. | Teichmann J. | 0:2 (66:7, 3:6) | details | 13.10.2018 |
 Switzerland: Gstaad - Singles - Qualification |
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| Semi-finals | Arn G. | Kiick A. | 0:2 (2:6, 2:6) | details | 14.07.2018 |
| Hungary: W25 Budapest - Singles - Main |
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| 1/16-finals | Lukas T. | Arn G. | 2:0 (6:2, 6:4) | details | 09.07.2018 |
 USA: Indian Harbour Beach - Singles - Main |
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| 1/16-finals | Jabeur O. | Arn G. | 2:0 (6:3, 6:0) | details | 11.04.2018 |
| USA: Charleston - Singles - Qualification |
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| Semi-finals | Garcia-Perez G. | Arn G. | 2:0 (6:2, 7:65) | details | 31.03.2018 |
 Canada: Toronto - Singles - Main |
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| 1/8-finals | Arn G. | Di Lorenzo F. | 0:2 (4:6, 0:6) | details | 02.11.2017 |
| 1/16-finals | Arn G. | Jovic J. | 2:0 (7:62, 6:2) | details | 31.10.2017 |
| Canada: Saguenay - Singles - Main |
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| Final | Schoofs B. | Arn G. | 0:2 (1:6, 2:6) | details | 29.10.2017 |
| Semi-finals | Arn G. | Xu S. | 2:0 (6:1, 6:4) | details | 28.10.2017 |
| Quarter-finals | Arn G. | Zhao C. | 2:0 (6:0, 6:1) | details | 27.10.2017 |
| 1/8-finals | Elbaba J. | Arn G. | 0:2 (0:6, 4:6) | details | 25.10.2017 |
| 1/16-finals | Sekulic S. | Arn G. | 0:2 (3:6, 0:6) | details | 23.10.2017 |
| Hungary: Dunakeszi - Singles - Main |
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| 1/8-finals | Arn G. | Ignatik A. | 1:2 (6:3, 4:6, 2:6) | details | 31.08.2017 |
| 1/16-finals | Arn G. | Eikeri U. | 2:0 (7:66, 6:4) | details | 29.08.2017 |
 Germany: Hechingen - Singles - Main |
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| 1/16-finals | Arn G. | Grabher J. | 0:2 (4:6, 68:7) | details | 09.08.2017 |
 United Kingdom: Wimbledon - Singles - Qualification |
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| Quarter-finals | Arn G. | Coin J. | 1:2 (6:4, 3:6, 8:10) | details | 18.06.2013 |
 Netherlands: Hertogenbosch - Singles - Qualification |
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| Semi-finals | Arn G. | Dolonc V. | 0:2 (5:7, 1:6) | details | 15.06.2013 |
 Belgium: Brussels - Singles - Qualification |
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| Quarter-finals | Arn G. | Pliskova Kr. | 0:2 (3:6, 4:6) | details | 18.05.2013 |
| Germany: Stuttgart - Singles - Qualification |
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| Quarter-finals | Meusburger Y. | Arn G. | 2:0 (6:2, 6:1) | details | 20.04.2013 |
 Australia: Australian Open - Singles - Main |
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| 1/64-finals | Arn G. | Cepelova J. | 0:2 (2:6, 2:6) | details | 15.01.2013 |
| Australia: Australian Open - Singles - Qualification |
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| Final | Arn G. | Mrdeza T. | 2:1 (6:4, 5:7, 6:4) | details | 12.01.2013 |
| Semi-finals | Arn G. | Beygelzimer Y. | 2:0 (6:1, 6:2) | details | 11.01.2013 |
| Quarter-finals | Arn G. | Omae A. | 2:0 (6:1, 6:2) | details | 10.01.2013 |
| Australia: Sydney - Singles - Qualification |
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| Semi-finals | Arn G. | Erakovic M. | 1:2 (5:7, 6:4, 4:6) | details | 05.01.2013 |
| Quarter-finals | Peer S. | Arn G. | 0:2 (0:6, 4:6) | details | 04.01.2013 |
 New Zealand: Auckland - Singles - Main |
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| 1/16-finals | Radwanska A. | Arn G. | 2:0 (6:2, 6:2) | details | 01.01.2013 |
| New Zealand: Auckland - Singles - Qualification |
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| Final | Arn G. | Luangnam N. | 1:2 (4:6, 6:3, 3:6) | details | 30.12.2012 |