| | | | |
| Ukraine | Chinese Taipei | |
|
RANK 167 | Sergiy Stakhovsky | 6-3 1-6 2-6 | Chun-Hsin Tseng | RANK |
RANK 207 | Illya Marchenko | 4-6 4-6 | Tung-Lin Wu | RANK |
| Denys Molchanov / Sergiy Stakhovsky | 6-7(4) 6-4 6-4 | Cheng-Peng Hsieh / Tsung-Hua Yang | |
RANK 167 | Sergiy Stakhovsky | 7-6(3) 4-6 6-3 | Tung-Lin Wu | RANK |
RANK 207 | Illya Marchenko | 6-3 6-2 | Chun-Hsin Tseng | RANK |
| | | | |
| | | | |
| Pakistan | Slovenia | |
|
RANK | Aisam Qureshi | 4-6 7-5 7-6(1) | Nik Razborsek | RANK |
RANK | Aqeel Khan | 0-6 7-6(6) 6-4 | Blaz Kavcic | RANK |
| Aqeel Khan / Aisam Qureshi | 6-3 7-6(7) | Blaz Kavcic / Tom Kocevar-Desman | |
RANK | Aisam Qureshi | NOT PLAYED | Blaz Kavcic | RANK |
RANK | Aqeel Khan | NOT PLAYED | Nik Razborsek | RANK |
| | | | |
| | | | |
| Bolivia | Dominican Republic | |
|
RANK | Hugo Dellien | 6-3 6-4 | Jose Hernandez-Fernandez | RANK |
RANK | Federico Zeballos | 3-6 4-6 | Roberto Cid | RANK |
| Hugo Dellien / Federico Zeballos | 6-3 6-2 | Roberto Cid / Nick Hardt | |
RANK | Hugo Dellien | 7-5 6-4 | Roberto Cid | RANK |
RANK | Federico Zeballos | NOT PLAYED | Jose Hernandez-Fernandez | RANK |
| | | | |
| | | | |
| Turkey | Israel | |
|
RANK | Cem Ilkel | 6-7(4) 2-6 | Daniel Cukierman | RANK 832 |
RANK | Altug Celikbilek | 7-5 1-6 6-4 | Ben Patael | RANK |
| Yanki Erel / Cem Ilkel | 3-6 1-6 | Daniel Cukierman / Jonathan Erlich | |
RANK | Cem Ilkel | 2-6 6-7(4) | Edan Leshem | RANK 355 |
RANK | Altug Celikbilek | NOT PLAYED | Daniel Cukierman | RANK 832 |
| | | | |
| | | | |
| Bosnia and Herzegovina | South Africa | |
|
RANK | Damir Dzumhur | 7-6(3) 7-5 | Ruan Roelofse | RANK |
RANK | Mirza Basic | 5-7 2-6 | Lloyd Harris | RANK |
| Mirza Basic / Tomislav Brkic | 7-6(4) 6-3 | Raven Klaasen / Ruan Roelofse | |
RANK | Damir Dzumhur | 6-1 2-1 RET | Lloyd Harris | RANK |
RANK | Mirza Basic | NOT PLAYED | Ruan Roelofse | RANK |
| | | | |
| | | | |
| Mexico | Finland | |
|
RANK | Manuel Sanchez | 4-6 4-6 | Patrik Niklas-Salminen | RANK |
RANK | Gerardo Lopez Villasenor | 6-3 6-7(5) 7-5 | Otto Virtanen | RANK |
| Santiago Gonzalez / Miguel-Angel Reyes-Varela | 3-6 6-7(6) | Harri Heliovaara / Henri Kontinen | |
RANK | Gerardo Lopez Villasenor | 6-0 7-6(2) | Harri Heliovaara | RANK |
RANK | Manuel Sanchez | 2-6 6-7(6) | Otto Virtanen | RANK |
| | | | |
| | | | |
| Lebanon | Thailand | |
|
| | | | |
| | | | |
| New Zealand | Venezuela | |
|
RANK | Finn Tearney | 6-4 6-4 | Jordi Munoz-Abreu | RANK |
RANK | Ajeet Rai | 7-5 4-6 2-6 | Luis David Martinez | RANK |
| Marcus Daniell / Artem Sitak | 6-3 7-6(3) | Luis David Martinez / Jordi Munoz-Abreu | |
RANK | Rubin Statham | 6-2 6-7(3) 4-1 RET | Brandon Perez | RANK |
RANK | Finn Tearney | NOT PLAYED | Luis David Martinez | RANK |
| | | | |
| | | | |
| Peru | Switzerland | |
|
RANK | Juan Pablo Varillas | 7-6(4) 7-6(3) | Sandro Ehrat | RANK |
RANK | Nicolas Alvarez | 4-6 4-6 | Henri Laaksonen | RANK |
| Sergio Galdos / Jorge Brian Panta | 7-5 7-6(8) | Sandro Ehrat / Luca Margaroli | |
RANK | Juan Pablo Varillas | 6-3 3-6 7-6(3) | Henri Laaksonen | RANK |
RANK | Nicolas Alvarez | NOT PLAYED | Sandro Ehrat | RANK |
| | | | |
| | | | |
| Norway | Barbados | |
|
RANK | Viktor Durasovic | 6-4 6-2 | Darian King | RANK |
RANK | Casper Ruud | 6-2 6-2 | Haydn Lewis | RANK |
| Viktor Durasovic / Casper Ruud | 6-3 6-2 | Haydn Lewis / Kaipo Marshall | |
RANK | Lukas Hellum Lilleengen | 6-2 6-1 | Kaipo Marshall | RANK |
RANK | Viktor Durasovic | NOT PLAYED | Haydn Lewis | RANK |
| | | | |
| | | | |
| Lithuania | Portugal | |
|
RANK | Laurynas Grigelis | 7-6(6) 3-6 0-6 | Frederico Ferreira Silva | RANK |
RANK | Julius Tverijonas | 1-6 3-6 | Joao Sousa | RANK |
| Laurynas Grigelis / Lukas Mugevicius | 3-6 1-6 | Joao Sousa / Pedro Sousa | |
RANK | Laurynas Grigelis | 6-7(5) 7-5 0-1 | Pedro Sousa | RANK |
RANK | Julius Tverijonas | NOT PLAYED | Frederico Ferreira Silva | RANK |
| | | | |
| | | | |
| Romania | China | |
|
| | | | |
| | | | |
| Norway | Ukraine | |
|
RANK | Viktor Durasovic | 6-3 6-0 | Illya Marchenko | RANK 207 |
RANK | Casper Ruud | 4-6 6-3 7-6(4) | Sergiy Stakhovsky | RANK 167 |
| Viktor Durasovic / Casper Ruud | 6-7(4) 3-6 | Denys Molchanov / Sergiy Stakhovsky | |
RANK | Viktor Durasovic | NOT PLAYED | Vitaliy Sachko | RANK |
RANK | Viktor Durasovic | 6-3 6-0 | Illya Marchenko | RANK 207 |
RANK | Casper Ruud | 6-3 6-2 | Vitaliy Sachko | RANK |
RANK | Casper Ruud | 4-6 6-3 7-6(4) | Sergiy Stakhovsky | RANK 167 |
RANK | Viktor Durasovic | NOT PLAYED | Vitaliy Sachko | RANK |
| | | | |
| | | | |
| Romania | Peru | |
|
RANK | Nicolae Frunza | 6-2 6-4 | Nicolas Alvarez | RANK |
RANK | Marius Copil | 7-5 6-2 | Conner Huertas Del Pino | RANK |
| Marius Copil / Horia Tecau | 4-6 6-3 6-2 | Sergio Galdos / Arklon Huertas Del Pino | |
RANK | Gabi Adrian Boitan | 6-4 6-4 | Jorge Brian Panta | RANK |
RANK | Nicolae Frunza | NOT PLAYED | Conner Huertas Del Pino | RANK |
RANK | Nicolae Frunza | 6-2 6-4 | Nicolas Alvarez | RANK |
RANK | Marius Copil | 7-5 6-2 | Conner Huertas Del Pino | RANK |
RANK | Gabi Adrian Boitan | 6-4 6-4 | Jorge Brian Panta | RANK |
RANK | Nicolae Frunza | NOT PLAYED | Conner Huertas Del Pino | RANK |
| | | | |
| | | | |
| Norway | Ukraine | |
|
RANK | Viktor Durasovic | 6-3 6-0 | Illya Marchenko | RANK 207 |
RANK | Casper Ruud | 4-6 6-3 7-6(4) | Sergiy Stakhovsky | RANK 167 |
| Viktor Durasovic / Casper Ruud | 6-7(4) 3-6 | Denys Molchanov / Sergiy Stakhovsky | |
RANK | Viktor Durasovic | NOT PLAYED | Vitaliy Sachko | RANK |
RANK | Viktor Durasovic | 3-6 0-6 | Illya Marchenko | RANK 207 |
RANK | Casper Ruud | 6-3 6-2 | Vitaliy Sachko | RANK |
RANK | Casper Ruud | 4-6 6-3 7-6(4) | Sergiy Stakhovsky | RANK 167 |
RANK | Viktor Durasovic | NOT PLAYED | Vitaliy Sachko | RANK |
| | | | |
| | | | |
| Romania | Peru | |
|
RANK | Nicolae Frunza | 6-2 6-4 | Nicolas Alvarez | RANK |
RANK | Marius Copil | 7-5 6-2 | Conner Huertas Del Pino | RANK |
| Marius Copil / Horia Tecau | 4-6 6-3 6-2 | Sergio Galdos / Arklon Huertas Del Pino | |
RANK | Gabi Adrian Boitan | 6-4 6-4 | Jorge Brian Panta | RANK |
RANK | Nicolae Frunza | NOT PLAYED | Conner Huertas Del Pino | RANK |
RANK | Nicolae Frunza | 2-6 4-6 | Nicolas Alvarez | RANK |
RANK | Marius Copil | 7-5 6-2 | Conner Huertas Del Pino | RANK |
RANK | Gabi Adrian Boitan | 6-4 6-4 | Jorge Brian Panta | RANK |
RANK | Nicolae Frunza | NOT PLAYED | Conner Huertas Del Pino | RANK |
| | | | |