| | | | |
| Latvia | Egypt | |
|
RANK | Karlis Ozolins | 6-7(9) 5-7 | Mohamed Safwat | RANK |
RANK | Ernests Gulbis | 6-4 6-3 | Karim-Mohamed Maamoun | RANK |
| Ernests Gulbis / Karlis Ozolins | 6-3 6-4 | Karim-Mohamed Maamoun / Mohamed Safwat | |
RANK | Ernests Gulbis | 6-2 6-4 | Mohamed Safwat | RANK |
RANK | Robert Strombachs | 6-3 7-6(3) | Amr Elsayed Abdou Ah Mohamed | RANK |
| | | | |
| | | | |
| Paraguay | Sri Lanka | |
|
RANK | Adolfo Daniel Vallejo | 6-4 6-4 | Sharmal Dissanayake | RANK |
RANK | Martin Antonio Vergara Del Puerto | 7-5 6-3 | Yasitha De Silva | RANK |
| Juan Borba / Ayed Zatar | 6-1 6-4 | Yasitha De Silva / Sharmal Dissanayake | |
RANK | Adolfo Daniel Vallejo | 6-1 6-1 | Thehan Sanjaya Wijemanne | RANK |
RANK | Martin Antonio Vergara Del Puerto | NOT PLAYED | Sharmal Dissanayake | RANK |
| | | | |
| | | | |
| Morocco | Vietnam | |
|
RANK | Lamine Ouahab | 6-3 6-2 | Nam Hoang Ly | RANK |
RANK | Adam Moundir | 6-1 6-4 | Phuong Van Nguyen | RANK |
| Anas Fattar / Lamine Ouahab | 6-4 6-1 | Quoc-Khanh Le / Nam Hoang Ly | |
RANK | Aissa Benchakroun | 2-6 6-3 1-0 | Linh Giang Trinh | RANK |
| | | | |
| | | | |
| Indonesia | Kenya | |
|
RANK | Christopher Rungkat | 6-1 6-2 | Sheil Kotecha | RANK |
RANK | David Agung Susanto | 6-2 6-4 | Ismael Changawa Ruwa Mzai | RANK |
| Christopher Rungkat / David Agung Susanto | 6-7(2) 7-6(6) 7-6(3) | Ismael Changawa Ruwa Mzai / Ibrahim Kibet Yego | |
RANK | Gunawan Trismuwantara | 6-4 6-2 | Kevin Cheruiyot | RANK |
RANK | Christopher Rungkat | NOT PLAYED | Ismael Changawa Ruwa Mzai | RANK |
| | | | |
| | | | |
| Guatemala | Tunisia | |
|
RANK | Wilfredo Gonzalez | 6-3 3-6 7-5 | Aziz Dougaz | RANK |
RANK | Franz Luna Lavidalie | 2-6 3-6 | Malek Jaziri | RANK |
| Sebastian Dominguez / Wilfredo Gonzalez | 6-7(4) 5-7 | Moez Echargui / Malek Jaziri | |
RANK | Wilfredo Gonzalez | 2-6 4-6 | Malek Jaziri | RANK |
RANK | Franz Luna Lavidalie | NOT PLAYED | Aziz Dougaz | RANK |
| | | | |
| | | | |
| Costa Rica | Bulgaria | |
|
RANK | Julian Saborio | 4-6 2-6 | Dimitar Kuzmanov | RANK 318 |
RANK | Jesse Flores | 5-7 6-4 3-6 | Alexandar Lazarov | RANK |
| Jesse Flores / Pablo Nunez | 7-6(9) 4-6 7-6(10) | Adrian Andreev / Alexandar Lazarov | |
RANK | Jesse Flores | 4-6 3-6 | Dimitar Kuzmanov | RANK 318 |
RANK | Rodrigo Crespo Piedra | 2-6 4-6 | Alexander Donski | RANK |
| | | | |
| | | | |
| Poland | Hong Kong | |
|
RANK 302 | Kacper Zuk | 6-2 6-1 | Ching Lam | RANK |
RANK | Jerzy Janowicz | 6-7(5) 7-5 6-4 | Pak Long Yeung | RANK |
| Szymon Walkow / Jan Zielinski | 6-3 6-7(6) 6-3 | Ching Lam / Pak Long Yeung | |
RANK | Maks Kasnikowski | 1-6 6-2 1-0 | Wai Yu Kai | RANK |
RANK | Jerzy Janowicz | NOT PLAYED | Ching Lam | RANK |
| | | | |
| | | | |
| Zimbabwe | Syria | |
|
RANK | Mehluli Don Ayanda Sibanda | 3-6 3-6 | Hazem Naw | RANK |
RANK | Benjamin Lock | 6-3 6-3 | Amer Naow | RANK |
| Benjamin Lock / Courtney John Lock | 6-1 4-6 6-3 | Yacoub Makzoume / Hazem Naw | |
RANK | Benjamin Lock | 6-4 6-4 | Hazem Naw | RANK |
RANK | Mehluli Don Ayanda Sibanda | NOT PLAYED | Yacoub Makzoume | RANK |
| | | | |
| | | | |
| Philippines | Greece | |
|
RANK | Alberto Lim | 2-6 1-6 | Stefanos Tsitsipas | RANK |
RANK | Jeson Patrombon | 2-6 1-6 | Petros Tsitsipas | RANK |
| Francis Casey Alcantara / Ruben Gonzales | 7-6(5) 6-4 | Markos Kalovelonis / Petros Tsitsipas | |
RANK | Jeson Patrombon | 2-6 1-6 | Stefanos Tsitsipas | RANK |
RANK | Eric Jr. Olivarez | 4-6 5-7 | Petros Tsitsipas | RANK |
| | | | |
| | | | |
| Denmark | Puerto Rico | |
|
RANK | Holger Rune | 4-6 6-3 6-0 | Ignacio Garcia | RANK |
RANK | Frederik Nielsen | 7-6(5) 6-2 | Ignacio Garcia | RANK |
| Ignacio Garcia / Quinton Vega | 1-6 2-6 | Soren Hess-Olesen / Frederik Nielsen | |
| | | | |
| | | | |
| El Salvador | Jamaica | |
|
RANK 410 | Marcelo Arevalo | 6-3 6-7(4) 6-2 | Rowland Phillips | RANK |
RANK | Alberto Emmanuel Alvarado Larin | NOT PLAYED | Rowland Phillips | RANK |
| Marcelo Arevalo / Lluis Miralles | 6-3 6-2 | Blaise Bicknell / Rowland Phillips | |
| | | | |
| | | | |
| Georgia | Estonia | |
|
RANK | Nikoloz Basilashvili | 6-4 6-1 | Vladimir Ivanov | RANK |
RANK | Aleksandre Metreveli | 4-6 6-4 3-6 | Kristjan Tamm | RANK |
| Aleksandre Metreveli / George Tsivadze | 6-3 3-6 3-6 | Vladimir Ivanov / Mattias Siimar | |
RANK | Zura Tkemaladze | 3-6 6-2 5-7 | Kristjan Tamm | RANK |
RANK | Nikoloz Davlianidze | 0-6 7-5 0-1 | Daniil Glinka | RANK |
| | | | |
| | | | |
| Tunisia | Zimbabwe | |
|
RANK | Malek Jaziri | 6-0 6-1 | Mehluli Don Ayanda Sibanda | RANK |
RANK | Aziz Dougaz | 2-6 7-6(6) 7-5 | Benjamin Lock | RANK |
| Malek Jaziri / Skander Mansouri | 6-3 6-2 | Benjamin Lock / Courtney John Lock | |
RANK | Aziz Ouakaa | 6-4 6-0 | Thabo Ncube | RANK |
RANK | Aziz Dougaz | NOT PLAYED | Mehluli Don Ayanda Sibanda | RANK |
RANK | Malek Jaziri | 6-0 6-1 | Mehluli Don Ayanda Sibanda | RANK |
RANK | Aziz Dougaz | 2-6 7-6(6) 7-5 | Benjamin Lock | RANK |
RANK | Aziz Ouakaa | 6-4 6-0 | Thabo Ncube | RANK |
RANK | Aziz Dougaz | NOT PLAYED | Mehluli Don Ayanda Sibanda | RANK |
| | | | |
| | | | |
| Morocco | Denmark | |
|
RANK | Elliot Benchetrit | 7-6(4) 3-6 6-2 | Christian Sigsgaard | RANK |
RANK | Lamine Ouahab | 6-4 2-6 4-6 | August Holmgren | RANK |
| Elliot Benchetrit / Lamine Ouahab | 4-6 4-6 | Frederik Nielsen / Christian Sigsgaard | |
RANK | Elliot Benchetrit | 2-6 0-6 | August Holmgren | RANK |
RANK | Lamine Ouahab | NOT PLAYED | Christian Sigsgaard | RANK |
RANK | Elliot Benchetrit | 7-6(4) 3-6 6-2 | Christian Sigsgaard | RANK |
RANK | Lamine Ouahab | 6-4 2-6 4-6 | August Holmgren | RANK |
RANK | Elliot Benchetrit | 2-6 0-6 | August Holmgren | RANK |
RANK | Lamine Ouahab | NOT PLAYED | Christian Sigsgaard | RANK |
| | | | |
| | | | |
| Tunisia | Zimbabwe | |
|
RANK | Malek Jaziri | 6-0 6-1 | Mehluli Don Ayanda Sibanda | RANK |
RANK | Aziz Dougaz | 2-6 7-6(6) 7-5 | Benjamin Lock | RANK |
| Malek Jaziri / Skander Mansouri | 6-3 6-2 | Benjamin Lock / Courtney John Lock | |
RANK | Aziz Ouakaa | 6-4 6-0 | Thabo Ncube | RANK |
RANK | Aziz Dougaz | NOT PLAYED | Mehluli Don Ayanda Sibanda | RANK |
RANK | Malek Jaziri | 0-6 1-6 | Mehluli Don Ayanda Sibanda | RANK |
RANK | Aziz Dougaz | 2-6 7-6(6) 7-5 | Benjamin Lock | RANK |
RANK | Aziz Ouakaa | 6-4 6-0 | Thabo Ncube | RANK |
RANK | Aziz Dougaz | NOT PLAYED | Mehluli Don Ayanda Sibanda | RANK |
| | | | |
| | | | |
| Morocco | Denmark | |
|
RANK | Elliot Benchetrit | 7-6(4) 3-6 6-2 | Christian Sigsgaard | RANK |
RANK | Lamine Ouahab | 6-4 2-6 4-6 | August Holmgren | RANK |
| Elliot Benchetrit / Lamine Ouahab | 4-6 4-6 | Frederik Nielsen / Christian Sigsgaard | |
RANK | Elliot Benchetrit | 2-6 0-6 | August Holmgren | RANK |
RANK | Lamine Ouahab | NOT PLAYED | Christian Sigsgaard | RANK |
RANK | Elliot Benchetrit | 6-7(4) 6-3 2-6 | Christian Sigsgaard | RANK |
RANK | Lamine Ouahab | 6-4 2-6 4-6 | August Holmgren | RANK |
RANK | Elliot Benchetrit | 6-2 6-0 | August Holmgren | RANK |
RANK | Lamine Ouahab | NOT PLAYED | Christian Sigsgaard | RANK |
| | | | |