Stadium: Court 2 Round: 25 Ground: Carpet indoor
| Challenger Ortisei | 2017/10/10 08:30 | Viktor Galovic v Jeremy Jahn | 6-3,3-6,6-3 |
| Challenger Sibiu | 2017/09/18 09:00 | Bjorn Fratangelo v Jeremy Jahn | 2-6,6-3,7-6 |
| Challenger Alphen | 2017/09/07 14:00 | Tommy Robredo v Jeremy Jahn | 6-4,7-6 |
| Challenger Alphen | 2017/09/06 10:00 | Jeremy Jahn v Ivan Endara | 6-1,6-4 |
| Challenger Como | 2017/08/30 10:10 | Jeremy Jahn v Oscar Otte | 4-6,6-2,3-6 |
| Challenger Como | 2017/08/28 17:30 | Jeremy Jahn v Steven Diez | 6-1,6-2 |
| US Open Qual | 2017/08/23 19:10 | Renzo Olivo v Jeremy Jahn | 7-6,6-4 |
| Challenger Meerbusch | 2017/08/18 11:30 | Karim-Mohamed Maamoun v Jeremy Jahn | 3-6,6-2,6-4 |
| Challenger Ortisei | 2017/10/09 11:00 | Pierre-Hugues Herbert v Laurynas Grigelis | 6-3,6-4 |
| Challenger Sibiu | 2017/09/19 12:50 | Laurynas Grigelis v Maximilian Marterer | 1-6,1-6 |
| Davis Cup | 2017/09/15 11:50 | Mikael Ymer v Laurynas Grigelis | 2-6,7-5,6-0,0-6,6-1 |
| Challenger Seville | 2017/09/05 09:00 | Laurynas Grigelis v Bernabe Zapata Miralles | 3-6,2-6 |
| ITF Romania F12 | 2017/09/03 08:00 | Laurynas Grigelis v Franco Agamenone | 6-2,6-2 |
| ITF Romania F12 | 2017/09/02 11:15 | Laurynas Grigelis v Alessandro Petrone | 6-2,6-4 |
| ITF Romania F12 | 2017/09/01 07:30 | Laurynas Grigelis v Vasile Antonescu | 7-5,6-1 |
| ITF Romania F12 | 2017/08/31 12:00 | Laurynas Grigelis v Alexandru Vasile Manole | 6-2,2-6,6-3 |