 Tunisia: M15 Monastir 7 - Doubles - Main |
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| 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 |
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| 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 |
 World: Davis Cup - World Group I - Doubles - Preliminary |
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| | Grigelis L./Mugevicius L. | Sousa J./Sousa P. | 0:2 (3:6, 1:6) | details | 07.03.2020 |
 Italy: M25 Trento - Doubles - Main |
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| Quarter-finals | Erler A./Jorda Sanchis D. | Brancaccio R./Grigelis L. | 2:1 (4:6, 6:3, 10:5) | details | 27.02.2020 |
 Czech Republic: Prague - Doubles - Main |
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| 1/8-finals | Golubev A./Nedovyesov A. | Grigelis L./Vervoort M. | 2:0 (6:2, 7:62) | details | 23.07.2019 |
 Germany: Ludwigshafen - Doubles - Main |
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| Quarter-finals | Lammons N./Romboli F. | Grigelis L./Kolar Z. | 2:0 (6:4, 6:4) | details | 04.07.2019 |
| 1/8-finals | Grigelis L./Kolar Z. | Barranco C. J./Denolly C. | 2:0 (6:1, 6:0) | details | 03.07.2019 |
| Italy: Parma - Doubles - Main |
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| Final | Grigelis L./Pellegrino A. | Behar A./Escobar G. | 2:1 (1:6, 6:3, 10:7) | details | 22.06.2019 |
| Semi-finals | Basso A./Dalla Valle E. | Grigelis L./Pellegrino A. | 0:2 (2:6, 5:7) | details | 21.06.2019 |
| Quarter-finals | Goransson A./Verbeek S. | Grigelis L./Pellegrino A. | 1:2 (6:3, 1:6, 5:10) | details | 20.06.2019 |
Sweden: Bastad - Singles - Qualification