Stadium: Grandstand Round: 25 Ground: Clay
| Challenger Caltanissetta | 2017/06/18 16:30 | Lorenzi, Paolo v Alessandro Giannessi | 6-4,6-2 |
| Challenger Caltanissetta | 2017/06/17 15:15 | Alessandro Giannessi v Stebe, Cedrik-Marcel | 6-3,7-6 |
| Challenger Caltanissetta | 2017/06/16 14:30 | Alessandro Giannessi v Mikhail Kukushkin | 6-4,1-6,6-1 |
| Challenger Caltanissetta | 2017/06/15 19:20 | Alessandro Giannessi v Cervantes, Inigo | 6-2,6-3 |
| Challenger Caltanissetta | 2017/06/13 12:15 | Alessandro Giannessi v Lopez Perez | 7-5,7-5 |
| Challenger - Vicence | 2017/05/30 16:25 | Filip Krajinovic v Alessandro Giannessi | 6-3,3-6,6-3 |
| French Open Qual | 2017/05/24 15:55 | Alessandro Giannessi v Donati, Matteo | 3-6,6-3,6-7 |
| French Open Qual | 2017/05/23 08:00 | Alessandro Giannessi v Calvin Hemery | 7-5,6-3 |
| Lyon, France | 2017/06/14 16:00 | Grigelis, Laurynas v Felix Auger Aliassime | 7-6,1-6,4-6 |
| Lyon, France | 2017/06/12 10:50 | Duckhee Lee v Grigelis, Laurynas | 4-6,5-7 |
| Shymkent 2, Kazakhstan | 2017/05/23 07:10 | Tyurnev, Evgeny v Grigelis, Laurynas | 6-4,6-4 |
| Samarkand, Uzbekistan | 2017/05/16 08:15 | Egor Gerasimov v Grigelis, Laurynas | 6-4,6-7,6-3 |
| ATP Istanbul Qual | 2017/04/30 09:00 | Grigelis, Laurynas v Bellotti, Riccardo | 2-6,1-6 |
| ATP Istanbul Qual | 2017/04/29 08:00 | Kamke, Tobias v Grigelis, Laurynas | 7-5,5-7,1-6 |
| Challenger - Francavilla | 2017/04/24 11:50 | Sousa, Pedro v Grigelis, Laurynas | 7-6,6-4 |
| Tunisia F15, Singles Qualifying | 2017/04/20 08:30 | Grigelis, Laurynas v Dmitriev, Kirill | 3-6,6-4,2-6 |