 Turkey: Izmir - Singles - Main |
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| 1/16-finals | Baker J. | Akkoyun H. | 2:0 (6:1, 6:0) | details | 17.09.2012 |
| Turkey: Istanbul - Singles - Main |
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| 1/16-finals | Akkoyun H. | Zivkovic D. | 1:2 (4:6, 6:3, 3:6) | details | 10.09.2012 |
| Turkey: Antalya-Belconti 12 - Singles - Main |
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| 1/8-finals | Akkoyun H. | Safwat M. | 0:2 (2:6, 3:6) | details | 06.09.2012 |
| 1/16-finals | Akkoyun H. | Chkoniya I. | 2:0 (6:2, 6:4) | details | 05.09.2012 |
| Turkey: Istanbul - Singles - Main |
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| 1/16-finals | Bega A. | Akkoyun H. | 0:0 RET. (3:1) | details | 21.08.2012 |
| Turkey: Tekirdag - Singles - Main |
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| Quarter-finals | Vasiliev M. | Akkoyun H. | 2:0 (6:3, 6:1) | details | 15.06.2012 |
| 1/8-finals | Akkoyun H. | Glancy D. | 2:0 (6:1, 6:1) | details | 14.06.2012 |
| 1/16-finals | Akkoyun H. | Duldaev D. | 2:0 (6:3, 6:4) | details | 13.06.2012 |
| Turkey: Mersin - Singles - Main |
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| 1/16-finals | Akkoyun H. | Brands D. | 0:2 (0:6, 2:6) | details | 10.04.2012 |
 World: Davis Cup Group II - Singles - Main |
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| | Akkoyun H. | Dubarenco M. | 2:3 (2:6, 7:5, 1:6, 6:3, 4:6) | details | 08.04.2012 |
| | Akkoyun H. | Albot R. | 0:3 (4:6, 2:6, 1:6) | details | 06.04.2012 |
| Turkey: Antalya 8 - Singles - Main |
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| 1/16-finals | Akkoyun H. | Kellner A. | 0:2 (3:6, 1:6) | details | 29.02.2012 |
| Turkey: Antalya 7 - Singles - Main |
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| 1/16-finals | Akkoyun H. | Horansky F. | 0:2 (6:7, 2:6) | details | 22.02.2012 |
| Turkey: Antalya 3 - Singles - Main |
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| 1/16-finals | Akkoyun H. | Folie A. | 0:1 RET. (0:6, 5:5) | details | 24.01.2012 |
| Turkey: Antalya 2 - Singles - Main |
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| 1/16-finals | Akkoyun H. | Erguden B. | 0:0 RET. (1:1) | details | 17.01.2012 |
| Turkey: Izmir - Singles - Main |
|---|
| 1/16-finals | Akkoyun H. | Ball C. | 0:2 (2:6, 3:6) | details | 20.09.2011 |
| Turkey: Istanbul - Singles - Main |
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| 1/16-finals | Akkoyun H. | Mertens Y. | 0:2 (1:6, 2:6) | details | 13.09.2011 |
| Turkey: Izmir - Singles - Main |
|---|
| 1/8-finals | Akkoyun H. | Devvarman S. | 0:2 (1:6, 1:6) | details | 23.09.2010 |
| 1/16-finals | Akkoyun H. | Kumantsov A. | 2:0 (6:3, 6:3) | details | 20.09.2010 |
| Turkey: Istanbul - Singles - Main |
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| 1/8-finals | Akkoyun H. | Ungur A. | 1:2 (6:3, 1:6, 6:7) | details | 12.08.2010 |
| 1/16-finals | Akkoyun H. | Desein N. | 1:0 RET. (7:5, 1:0) | details | 10.08.2010 |
| World: Davis Cup Group II - Singles - Main |
|---|
| | Niland C. | Akkoyun H. | CAN. | details | 07.03.2010 |
| | Sorensen L. | Akkoyun H. | CAN. | details | 05.03.2010 |
| Turkey: Istanbul - Singles - Main |
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| 1/16-finals | Akkoyun H. | Marchenko I. | 0:2 (1:6, 3:6) | details | 11.08.2009 |
| World: Mediterranean Games - Singles - Main |
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| | Akkoyun H. | Ternar T. | 0:2 (4:6, 0:6) | details | 28.06.2009 |
| Turkey: Izmir - Singles - Main |
|---|
| 1/16-finals | Bogdanovic A. | Akkoyun H. | 2:0 (7:64, 6:4) | details | 12.05.2009 |