Grinvalds Roberts (Latvia)
- Show:
 USA: Niceville - Singles - Main | |||||||
|---|---|---|---|---|---|---|---|
| 1/16-finals | Hernandez A. | Grinvalds R. | 2:0 (6:4, 6:2) | details | 07.11.2018 | ||
 World: Davis Cup - Group III - Singles - Placement matches | |||||||
| Grinvalds R. | Zund S. | 2:0 (6:0, 6:0) | details | 07.04.2018 | |||
| World: Davis Cup - Group III - Singles - Main | |||||||
| Grinvalds R. | Stergiou I. | 0:2 (0:6, 4:6) | details | 04.04.2018 | |||
- Show:
| World: Davis Cup - Group III - Doubles - Placement matches | |||||||
|---|---|---|---|---|---|---|---|
| Grinvalds R./Podzus M. | Forster R./Leuch V. F. | 2:0 (6:1, 6:3) | details | 07.04.2018 | |||
| World: Davis Cup - Group III - Doubles - Main | |||||||
| Grinvalds R./Rocens M. | Khachatryan S./Nikoghosyan H. | 0:0 RET. (5:3) | details | 06.04.2018 | |||
| Grinvalds R./Podzus M. | Khachatryan S./Nikoghosyan H. | CAN. | details | 06.04.2018 | |||
| Grinvalds R./Rocens M. | Cungu R./Dragovic S. | CAN. | details | 05.04.2018 | |||
| Grinvalds R./Rocens M. | Dragovic S./Rogan P. | 2:0 (7:5, 6:3) | details | 05.04.2018 | |||