 Tunisia: M15 Monastir 7 - Doubles - Main |
|---|
| Quarter-finals | Grigelis L./Mugevicius L. | Iamachkine P./Roveri Sidney G. | 0:2 (4:6, 4:6) | details | 22.10.2020 |
| 1/8-finals | Grigelis L./Mugevicius L. | Steiner M./Zahraj P. | 2:0 (6:3, 6:3) | details | 20.10.2020 |
| Tunisia: M15 Monastir 6 - Doubles - Main |
|---|
| Final | Ivanov V./Kachmazov A. | Grigelis L./Mugevicius L. | 2:0 (6:4, 6:4) | details | 17.10.2020 |
| Semi-finals | Grigelis L./Mugevicius L. | Liaonenka A./Martinez M. | 2:1 (6:3, 4:6, 10:8) | details | 16.10.2020 |
| Quarter-finals | Orso A./Ovcharenko O. | Grigelis L./Mugevicius L. | 0:2 (4:6, 3:6) | details | 15.10.2020 |
| Tunisia: M15 Monastir 4 - Doubles - Main |
|---|
| 1/8-finals | Grigelis L./Mugevicius L. | Damm M./Tirante T. A. | 1:2 (6:2, 4:6, 8:10) | details | 29.09.2020 |
| Tunisia: M15 Monastir 13 - Doubles - Main |
|---|
| 1/8-finals | Erler A./Pichler D. | Grigelis L./Mugevicius L. | 2:0 (6:4, 6:2) | details | 22.09.2020 |
 World: Davis Cup - World Group I - Doubles - Preliminary |
|---|
| | Grigelis L./Mugevicius L. | Sousa J./Sousa P. | 0:2 (3:6, 1:6) | details | 07.03.2020 |
| World: Davis Cup - Group II - Doubles - Main |
|---|
| | Heliovaara H./Kontinen H. | Grigelis L./Mugevicius L. | 2:0 (6:4, 7:62) | details | 08.04.2018 |
| | Kontinen H./Niklas-Salminen P. | Grigelis L./Mugevicius L. | CAN. | details | 08.04.2018 |
| | Grigelis L./Mugevicius L. | Raisma K./Siimar M. | CAN. | details | 04.02.2018 |
| World: Davis Cup - Group II - Doubles - Main |
|---|
| | Basilashvili N./Tsivadze G. | Grigelis L./Mugevicius L. | 0:3 (4:6, 3:6, 3:6) | details | 08.04.2017 |
| World: Davis Cup Group II - Doubles - Main |
|---|
| | Grigelis L./Mugevicius L. | Basic M./Brkic T. | 0:3 (4:6, 4:6, 2:6) | details | 17.09.2016 |
| World: Davis Cup Group I - Doubles - Main |
|---|
| | Kavcic B./Rola B. | Grigelis L./Mugevicius L. | 3:0 (6:4, 7:61, 6:4) | details | 31.10.2015 |
| | Kavcic B./Zemlja G. | Grigelis L./Mugevicius L. | CAN. | details | 31.10.2015 |
 Turkey: Agri - Doubles - Main |
|---|
| Semi-finals | Kravchuk K./Molchanov D. | Grigelis L./Mugevicius L. | WO. | details | 03.10.2015 |
| Quarter-finals | Grigelis L./Mugevicius L. | Altuna T./Becker R. | 2:0 (7:5, 6:3) | details | 01.10.2015 |
| 1/8-finals | Grigelis L./Mugevicius L. | Mektic N./Pavic A. | 2:0 (6:4, 6:3) | details | 29.09.2015 |
 Uzbekistan: Fergana - Doubles - Main |
|---|
| 1/8-finals | Grigelis L./Mugevicius L. | Albot R./Kudryavtsev A. | 1:2 (7:63, 2:6, 6:10) | details | 16.06.2015 |
| Turkey: Batman - Singles - Main |
|---|
| Quarter-finals | Pavic M./Venus M. | Grigelis L./Mugevicius L. | 2:0 (6:1, 6:4) | details | 09.04.2015 |
| 1/8-finals | Gerasimov E./Kudryavtsev A. | Grigelis L./Mugevicius L. | WO. | details | 08.04.2015 |
| World: Davis Cup Group I - Doubles - Main |
|---|
| | Kubot L./Matkowski M. | Grigelis L./Mugevicius L. | CAN. | details | 07.03.2015 |
