Stadium: Hard Court 5 Round: 44 Ground: Hardcourt outdoor
| ITF Turkey F1 | 2018/01/07 07:30 | Marc Sieber v Masayoshi Ono | 6-2,6-2 |
| Challenger Bratislava Qual | 2017/11/05 09:00 | Danylo Kalenichenko v Marc Sieber | 7-6,6-3 |
| Challenger Bratislava Qual | 2017/11/04 09:00 | Altug Celikbilek v Marc Sieber | 7-5,1-6,0-6 |
| Challenger Eckental Qual | 2017/10/30 11:20 | Robin Kern v Marc Sieber | 6-4,6-2 |
| Challenger Eckental Qual | 2017/10/29 16:10 | Nikola Cacic v Marc Sieber | 2-6,6-3,1-6 |
| Challenger Eckental Qual | 2017/10/28 17:10 | Andriej Kapas v Marc Sieber | 6-4,4-6,3-6 |
| Challenger Brest Qual | 2017/10/22 14:45 | Andrea Arnaboldi v Marc Sieber | 1-6,6-3,6-3 |
| Challenger Brest Qual | 2017/10/21 10:55 | David Vega Hernandez v Marc Sieber | 2-6,4-6 |
| ITF Turkey F1 | 2018/01/07 07:30 | Nikita Valentsev v Darko Bojanovic | 5-7,2-6 |
| ITF Turkey F48 | 2017/12/19 08:00 | Colin Van Beem v Darko Bojanovic | 6-2,6-2 |
| ITF Turkey F47 | 2017/12/14 10:00 | Darko Bojanovic v Cristian Rodriguez | 4-6,4-6 |
| ITF Turkey F47 | 2017/12/12 10:20 | Peter Bothwell v Darko Bojanovic | 4-6,3-6 |
| ITF Turkey F47 Qual | 2017/12/11 08:30 | Darko Bojanovic v Nenad Vladusic | 6-3,4-6,6-1 |
| ITF Turkey F47 Qual | 2017/12/10 07:15 | Darko Bojanovic v Pavel Petrov | 6-1,6-2 |
| ITF Turkey F45 | 2017/11/29 11:50 | Darko Bojanovic v Alexander Erler | 1-6,3-6 |
| ITF Turkey F45 Qual | 2017/11/28 10:30 | Darko Bojanovic v Zlatan Palazov | 6-2,2-6,6-4 |