| Challenger Koblenz Qual | 2017/01/16 09:00 | Adrian Ungur v Rene Schulte | 6-4,6-4 |
| Challenger Koblenz Qual | 2017/01/15 08:00 | Edward Corrie v Adrian Ungur | 1-6,4-6 |
| Challenger Casablanca | 2016/10/11 10:00 | Adrian Ungur v Kamil Majchrzak | 5-7,3-6 |
| Challenger Rome 2 | 2016/09/27 13:00 | Elias Ymer v Adrian Ungur | 2-6,6-3,6-4 |
| Challenger Sibiu | 2016/09/23 10:00 | Tim Puetz v Adrian Ungur | 7-6,7-5 |
| Challenger Sibiu | 2016/09/22 11:40 | Bogdan Borza v Adrian Ungur | 1-6,3-6 |
| Challenger Sibiu | 2016/09/20 14:55 | Jonathan Eysseric v Adrian Ungur | 6-7,3-6 |
| Challenger Banja Luka | 2016/09/14 11:10 | Jan Satral v Adrian Ungur | 6-4,6-4 |
| Challenger Koblenz Qual | 2017/01/16 09:00 | Nils Langer v Edan Leshem | 7-5,6-4 |
| Challenger Koblenz Qual | 2017/01/15 08:00 | Nils Langer v Raphael Loukas | 6-1,6-1 |
| Challenger Bangkok 2 | 2017/01/11 03:00 | Yannick Maden v Nils Langer | 7-6,6-4 |
| Challenger Bangkok 2 | 2017/01/09 06:35 | Nils Langer v Zdenek Kolar | 6-0,5-7,6-3 |
| Challenger Bangkok | 2017/01/03 08:00 | Yuichi Sugita v Nils Langer | 7-6,5-7,6-0 |
| Challenger Bangkok Qual | 2017/01/02 03:00 | Daniel Altmaier v Nils Langer | 6-7,6-3,1-6 |
| Challenger Bangkok Qual | 2017/01/01 05:10 | Nils Langer v Kevin Krawietz | 6-3,6-0 |
| Challenger Bangkok Qual | 2016/12/31 06:00 | Nils Langer v Cem Ilkel | 6-3,7-5 |