| | | | |
|  Austria |  Pakistan | |
|
|
RANK 194 | Jurij Rodionov | 6-3 6-1 | Muhammad Shoaib | RANK |
RANK 336 | Filip Misolic | 6-1 7-6(4) | Muzammil Murtaza | RANK |
| Alexander Erler / Lucas Miedler | 6-3 6-3 | Aqeel Khan / Aisam Qureshi | |
RANK 194 | Jurij Rodionov | 6-2 6-2 | Muzammil Murtaza | RANK |
RANK 336 | Filip Misolic | NOT PLAYED | Muhammad Shoaib | RANK |
| | | | |
| | | | |
|  Colombia |  Turkey | |
|
|
RANK 265 | Nicolas Mejia | 6-3 1-6 7-6(4) | Altug Celikbilek | RANK 159 |
RANK 105 | Daniel Elahi Galan | 6-2 6-2 | Cem Ilkel | RANK 189 |
| Juan-Sebastian Cabal / Robert Farah | 6-2 6-2 | Cem Ilkel / Ergi Kirkin | |
RANK 476 | Nicolas Barrientos | 6-4 7-5 | Yanki Erel | RANK 417 |
RANK 265 | Nicolas Mejia | NOT PLAYED | Cem Ilkel | RANK 189 |
| | | | |
| | | | |
|  Israel |  Czech Republic | |
|
|
RANK 661 | Daniel Cukierman | 0-6 4-6 | Jiri Lehecka | RANK 94 |
RANK 511 | Edan Leshem | 4-6 5-7 | Tomas Machac | RANK 131 |
| Daniel Cukierman / Jonathan Erlich | 6-4 6-3 | Jiri Lehecka / Tomas Machac | |
RANK 511 | Edan Leshem | 6-4 0-6 5-7 | Jiri Lehecka | RANK 94 |
RANK 661 | Daniel Cukierman | NOT PLAYED | Tomas Machac | RANK 131 |
| | | | |
| | | | |
|  Uzbekistan |  Japan | |
|
|
RANK 279 | Denis Istomin | 6-3 6-7(5) 6-7(9) | Sho Shimabukuro | RANK 428 |
RANK 821 | Sergey Fomin | 7-6(3) 7-6(2) | Shintaro Mochizuki | RANK 368 |
| Sanjar Fayziev / Denis Istomin | 3-6 7-6(2) 6-2 | Kaito Uesugi / Yosuke Watanuki | |
RANK 821 | Sergey Fomin | 7-6(1) 7-5 | Sho Shimabukuro | RANK 428 |
RANK 279 | Denis Istomin | NOT PLAYED | Shintaro Mochizuki | RANK 368 |
| | | | |
| | | | |
|  Ecuador |  Switzerland | |
|
|
RANK 381 | Roberto Quiroz | 4-6 2-6 | Marc-Andrea Huesler | RANK 181 |
RANK 144 | Emilio Gomez | 6-4 6-3 | Henri Laaksonen | RANK 89 |
| Gonzalo Escobar / Diego Hidalgo | 5-7 6-4 3-6 | Marc-Andrea Huesler / Dominic Stephan Stricker | |
RANK 144 | Emilio Gomez | 6-7(3) 6-2 6-2 | Marc-Andrea Huesler | RANK 181 |
RANK 381 | Roberto Quiroz | | Alexander Ritschard | RANK 232 |
| | | | |
| | | | |
|  Peru |  Chile | |
|
|
RANK 341 | Nicolas Alvarez | 2-6 4-6 | Alejandro Tabilo | RANK 98 |
RANK 116 | Juan Pablo Varillas | 7-6(3) 1-6 6-4 | Nicolas Jarry | RANK 146 |
| Sergio Galdos / Arklon Huertas Del Pino | 4-6 2-6 | Nicolas Jarry / Alejandro Tabilo | |
RANK 116 | Juan Pablo Varillas | 1-6 6-4 6-4 | Alejandro Tabilo | RANK 98 |
RANK 341 | Nicolas Alvarez | | Nicolas Jarry | RANK 146 |
| | | | |
| | | | |
|  Portugal |  Brazil | |
|
|
RANK 87 | Joao Sousa | 6-1 6-3 | Felipe Meligeni Rodrigues Alves | RANK 210 |
RANK 165 | Nuno Borges | 6-7(5) 6-4 7-6(3) | Thiago Monteiro | RANK 114 |
| Nuno Borges / Francisco Cabral | 3-6 6-0 3-6 | Rafael Matos / Felipe Meligeni Rodrigues Alves | |
RANK 87 | Joao Sousa | 6-3 6-1 | Thiago Monteiro | RANK 114 |
RANK 165 | Nuno Borges | NOT PLAYED | Felipe Meligeni Rodrigues Alves | RANK 210 |
| | | | |
| | | | |
|  Norway |  India | |
|
|
RANK 8 | Casper Ruud | 6-1 6-4 | Prajnesh Gunneswaran | RANK 246 |
RANK 321 | Viktor Durasovic | 6-1 6-4 | Ramkumar Ramanathan | RANK 170 |
| Viktor Durasovic / Casper Ruud | 6-3 3-6 6-3 | Yuki Bhambri / Saketh Myneni | |
RANK 1310 | Lukas Hellum Lilleengen | 2-6 1-6 | Sumit Nagal | RANK 205 |
RANK 321 | Viktor Durasovic | NOT PLAYED | Prajnesh Gunneswaran | RANK 246 |
| | | | |
| | | | |
|  Ukraine |  Hungary | |
|
|
RANK 1985 | Viacheslav Bielinskyi | 3-6 2-6 | Marton Fucsovics | RANK 35 |
RANK 499 | Vladyslav Orlov | 2-6 2-6 | Zsombor Piros | RANK 240 |
| Illya Beloborodko / Vladyslav Manafov | 7-6(4) 6-4 | Peter Fajta / Fabian Marozsan | |
RANK 675 | Illya Beloborodko | 2-6 5-7 | Marton Fucsovics | RANK 35 |
RANK 1985 | Viacheslav Bielinskyi | NOT PLAYED | Zsombor Piros | RANK 240 |
| | | | |
| | | | |
|  Slovakia |  Romania | |
|
|
RANK 110 | Norbert Gombos | 7-6(4) 5-7 4-6 | Nicholas David Ionel | RANK 411 |
RANK 66 | Alex Molcan | 7-5 6-1 | Marius Copil | RANK 261 |
| Lukas Klein / Igor Zelenay | 7-6(4) 6-2 | Marius Copil / Victor Vlad Cornea | |
RANK 66 | Alex Molcan | 6-1 6-1 | Nicholas David Ionel | RANK 411 |
RANK 110 | Norbert Gombos | NOT PLAYED | Marius Copil | RANK 261 |
| | | | |
| | | | |
|  Finland |  New Zealand | |
|
|
RANK 71 | Emil Ruusuvuori | 6-1 6-2 | Kiranpal Pannu | RANK 1168 |
RANK 405 | Otto Virtanen | 6-4 6-3 | Ajeet Rai | RANK 918 |
| Harri Heliovaara / Emil Ruusuvuori | 7-5 3-6 6-3 | Artem Sitak / Michael Venus | |
RANK 71 | Emil Ruusuvuori | 6-2 6-1 | Isaac Becroft | RANK |
RANK 1306 | Eero Vasa | 6-2 6-3 | Kiranpal Pannu | RANK 1168 |
| | | | |
| | | | |
|  Bosnia and Herzegovina |  Mexico | |
|
|
RANK 283 | Nerman Fatic | 6-3 6-4 | Gerardo Lopez Villasenor | RANK 646 |
RANK 140 | Damir Dzumhur | 6-2 6-1 | Alan Fernando Rubio Fierros | RANK 1517 |
| Mirza Basic / Tomislav Brkic | 6-4 7-6(4) | Santiago Gonzalez / Miguel-Angel Reyes-Varela | |
RANK 1777 | Andrej Nedic | 2-6 7-5 0-1 | Luis Carlos Alvarez | RANK |
RANK 283 | Nerman Fatic | NOT PLAYED | Alan Fernando Rubio Fierros | RANK 1517 |
| | | | |