Germany: Ludwigshafen - Doubles - Main |
| Quarter-finals | Lammons N./Romboli F. | Grigelis L./Kolar Z. | 2:0 (6:4, 6:4) | dettagli | 04.07.2019 |
| 1/8-finals | Grigelis L./Kolar Z. | Barranco Cosano J./Denolly C. | 2:0 (6:1, 6:0) | dettagli | 03.07.2019 |
Italy: Barletta - Doubles - Main |
| 1/8-finals | Grigelis L./Kolar Z. | Otte O./Siljestrom A. | CAN. | dettagli | 10.04.2019 |
Italy: Bergamo - Doubles - Main |
| Final | Grigelis L./Kolar Z. | Brkic T./Brown D. | 2:0 (7:5, 7:67) | dettagli | 23.02.2019 |
| Semi-finals | Grigelis L./Kolar Z. | Clayton S./Shamasdin A. | 2:0 (6:4, 6:1) | dettagli | 22.02.2019 |
| Quarter-finals | Grigelis L./Kolar Z. | Caruana L./Sinner J. | 2:0 (6:3, 6:3) | dettagli | 21.02.2019 |
| 1/8-finals | Pel D./Sancic A. | Grigelis L./Kolar Z. | 1:2 (3:6, 6:3, 4:10) | dettagli | 20.02.2019 |
Italy: Andria - Doubles - Main |
| Quarter-finals | Arends S./Gille S. | Grigelis L./Kolar Z. | 2:0 (6:4, 6:4) | dettagli | 23.11.2017 |
| 1/8-finals | Grigelis L./Kolar Z. | Dalla Valle E./Vervoort M. | 2:0 (6:4, 6:4) | dettagli | 21.11.2017 |
Czech Republic: Liberec - Doubles - Main |
| Final | Grigelis L./Kolar Z. | Bednarek T./Pel D. | 2:0 (6:3, 6:4) | dettagli | 05.08.2017 |
| Semi-finals | Clezar G./Ficovich J. P. | Grigelis L./Kolar Z. | 1:2 (4:6, 7:61, 10:12) | dettagli | 04.08.2017 |
| Quarter-finals | Grigelis L./Kolar Z. | Cornea V. V./Grigoriu P. | 2:0 (6:2, 6:3) | dettagli | 02.08.2017 |
| 1/8-finals | Grigelis L./Kolar Z. | Jaloviec M./Safranek V. | 2:0 (6:3, 6:2) | dettagli | 31.07.2017 |
Italy: Milan - Doubles - Main |
| Quarter-finals | Bednarek T./Pel D. | Grigelis L./Kolar Z. | 2:0 (6:2, 7:5) | dettagli | 30.06.2017 |
| 1/8-finals | Grigelis L./Kolar Z. | De Waard S./McLachlan B. | 2:0 (6:3, 6:3) | dettagli | 27.06.2017 |
Uzbekistan: Samarkand - Doubles - Main |
| Final | Gunneswaran P./Vardhan V. | Grigelis L./Kolar Z. | 0:2 (62:7, 3:6) | dettagli | 19.05.2017 |
| Semi-finals | Grigelis L./Kolar Z. | Matsui T./Ramanathan R. | 2:0 (6:3, 6:4) | dettagli | 18.05.2017 |
| Quarter-finals | Grigelis L./Kolar Z. | Ghedin R./Matsukevitch D. | 2:0 (6:1, 6:4) | dettagli | 17.05.2017 |
| 1/8-finals | Khassanov R./Shofayziyev S. | Grigelis L./Kolar Z. | 0:2 (3:6, 4:6) | dettagli | 15.05.2017 |