 Romania: Sibiu - Doubles - Main |
|---|
| Quarter-finals | Bozoljac I./Lajovic D. | Kovalik J./Mertl J. | 2:0 (6:2, 7:5) | details | 24.09.2015 |
| 1/8-finals | Kovalik J./Mertl J. | Giannessi A./Sinicropi R. | 2:1 (3:6, 6:1, 10:5) | details | 22.09.2015 |
 Spain: Seville - Doubles - Main |
|---|
| 1/8-finals | Koolhof W./Middelkoop M. | Kovalik J./Mertl J. | 2:1 (4:6, 6:3, 10:4) | details | 07.09.2015 |
 Netherlands: Scheveningen - Doubles - Main |
|---|
| Quarter-finals | Arends S./Lootsma N. | Kovalik J./Mertl J. | 2:1 (62:7, 6:4, 13:11) | details | 22.07.2015 |
| 1/8-finals | Timmermans J./Van Terheijden T. | Kovalik J./Mertl J. | 0:2 (3:6, 2:6) | details | 21.07.2015 |
 Slovakia: Poprad - Doubles - Main |
|---|
| Semi-finals | Gombos N./Pavlasek A. | Kovalik J./Mertl J. | 2:0 (7:64, 7:66) | details | 19.06.2015 |
| Quarter-finals | Klec I./Nedovyesov A. | Kovalik J./Mertl J. | 0:2 (2:6, 2:6) | details | 18.06.2015 |
| 1/8-finals | Kovalik J./Mertl J. | Kowalczyk M./Zelenay I. | 2:1 (4:6, 6:3, 10:7) | details | 17.06.2015 |
| Slovakia: Trnava - Doubles - Main |
|---|
| Quarter-finals | Kovalik J./Mertl J. | Balleret B./Motti A. | 0:2 (1:6, 3:6) | details | 18.09.2014 |
| 1/8-finals | Kovalik J./Mertl J. | Albot R./Copil M. | 2:0 (6:2, 7:66) | details | 16.09.2014 |
