Stadium: Pallazzetto Alzano Round: 27 Ground: Hardcourt indoor
| Challenger Bergamo - Herrdubbel | 2019/02/20 14:30 | Pel/Sancic v Grigelis/Kolar | 3-6,6-3,4-10 |
| Challenger Andria - Herrdubbel | 2017/11/23 14:00 | Arends/Gille v Grigelis/Kolar | 6-4,6-4 |
| Challenger Liberec - Herrdubbel | 2017/08/05 13:45 | Grigelis/Kolar v Bednarek/Pel | 6-3,6-4 |
| Challenger Liberec - Herrdubbel | 2017/08/04 15:00 | Clezar/Ficovich v Grigelis/Kolar | 4-6,7-6,10-12 |
| Challenger Liberec - Herrdubbel | 2017/07/31 09:00 | Grigelis/Kolar v Jaloviec/Safranek | 6-3,6-2 |
| Challenger Milan - Herrdubbel | 2017/06/30 08:30 | Bednarek/Pel v Grigelis/Kolar | 6-2,7-5 |
| Challenger Milan - Herrdubbel | 2017/06/26 16:25 | Grigelis/Kolar v De Waard/Mclachlan | 6-3,6-3 |
| Challenger Samarkand - Herrdubbel | 2017/05/19 09:15 | Gunneswaran/Vardhan v Grigelis/Kolar | 6-7,3-6 |