| | | | |
| China | Ireland | |
|
| | | | |
| | | | |
| Dominican Republic | Vietnam | |
|
|
RANK 328 | Nick Hardt | 6-1 6-4 | Linh Giang Trinh | RANK |
RANK 378 | Roberto Cid | 4-6 6-3 6-1 | Nam Hoang Ly | RANK 569 |
| Peter Bertran / Nick Hardt | 6-7(7) 6-4 6-1 | Quoc-Khanh Le / Nam Hoang Ly | |
RANK | Alejandro Jose Gandini | NOT PLAYED | Phuong Van Nguyen | RANK |
RANK 378 | Roberto Cid | NOT PLAYED | Linh Giang Trinh | RANK |
| | | | |
| | | | |
| Thailand | Latvia | |
|
|
RANK 1302 | Kasidit Samrej | 6-7(4) 6-3 4-6 | Robert Strombachs | RANK 742 |
RANK | Yuttana Charoenphon | 4-6 2-6 | Ernests Gulbis | RANK 324 |
| Pruchya Isaro / Thantub Suksumrarn | 4-6 7-5 6-0 | Ernests Gulbis / Robert Strombachs | |
RANK 1302 | Kasidit Samrej | 4-6 6-4 4-6 | Ernests Gulbis | RANK 324 |
| | | | |
| | | | |
| Guatemala | Chinese Taipei | |
|
|
RANK 1292 | Wilfredo Gonzalez | 0-6 3-6 | Tung-Lin Wu | RANK 270 |
RANK | Christopher Diaz-Figueroa | 5-7 4-6 | Chun-Hsin Tseng | RANK 164 |
| Christopher Diaz-Figueroa / Wilfredo Gonzalez | 4-6 3-6 | Yu Hsiou Hsu / Tung-Lin Wu | |
RANK | Sebastian Dominguez | 4-6 3-6 | Chun-Hsin Tseng | RANK 164 |
RANK | Christopher Diaz-Figueroa | NOT PLAYED | Tung-Lin Wu | RANK 270 |
| | | | |
| | | | |
| Indonesia | Venezuela | |
|
|
RANK | Christopher Rungkat | 7-6(4) 6-1 | Luis David Martinez | RANK |
RANK | Achad Imam Maruf | NOT PLAYED | Jordi Munoz-Abreu | RANK |
| Fitriadi M Rifqi / Christopher Rungkat | 6-1 7-5 | Luis David Martinez / Jordi Munoz-Abreu | |
| | | | |
| | | | |
| Estonia | Pacific Oceania | |
|
|
| | | | |
| | | | |
| Egypt | Cyprus | |
|
|
RANK 355 | Mohamed Safwat | 6-3 6-2 | Menelaos Efstathiou | RANK 1041 |
RANK 626 | Karim-Mohamed Maamoun | 3-6 4-6 | Petros Chrysochos | RANK 486 |
| Karim-Mohamed Maamoun / Mohamed Safwat | 4-6 6-3 6-4 | Petros Chrysochos / Eleftherios Neos | |
RANK 355 | Mohamed Safwat | 5-7 6-2 6-0 | Petros Chrysochos | RANK 486 |
RANK 1237 | Amr Asrawy | 6-3 6-3 | Stylianos Christodoulou | RANK 1445 |
| | | | |
| | | | |
| Greece | Jamaica | |
|
|
RANK 402 | Michail Pervolarakis | 2-6 6-4 3-6 | Rowland Phillips | RANK 1390 |
RANK 808 | Petros Tsitsipas | 3-6 5-7 | Blaise Bicknell | RANK 1130 |
| Markos Kalovelonis / Petros Tsitsipas | 6-2 6-3 | Blaise Bicknell / Rowland Phillips | |
RANK 1103 | Aristotelis Thanos | 6-4 6-4 | Blaise Bicknell | RANK 1130 |
RANK 808 | Petros Tsitsipas | 4-6 6-4 6-4 | Rowland Phillips | RANK 1390 |
| | | | |
| | | | |
| Monaco | Morocco | |
|
|
RANK 393 | Lucas Catarina | 6-3 6-4 | Adam Moundir | RANK 910 |
RANK 477 | Valentin Vacherot | 6-2 6-4 | Elliot Benchetrit | RANK 413 |
| Romain Arneodo / Hugo Nys | 6-1 6-2 | Elliot Benchetrit / Lamine Ouahab | |
RANK 393 | Lucas Catarina | 7-5 6-1 | Yassine Dlimi | RANK |
RANK 477 | Valentin Vacherot | NOT PLAYED | Adam Moundir | RANK 910 |
| | | | |
| | | | |
| Bulgaria | Paraguay | |
|
|
RANK 195 | Dimitar Kuzmanov | 7-6(5) 6-0 | Hernando Jose Escurra Isnardi | RANK |
RANK 409 | Alexandar Lazarov | 6-4 6-1 | Adolfo Daniel Vallejo | RANK 1985 |
| Alexander Donski / Alexandar Lazarov | 6-3 7-5 | Juan Borba / Hernando Jose Escurra Isnardi | |
RANK 1707 | Petr Nesterov | 6-7(6) 7-6(2) 0-1 | Adolfo Daniel Vallejo | RANK 1985 |
RANK 409 | Alexandar Lazarov | NOT PLAYED | Hernando Jose Escurra Isnardi | RANK |
| | | | |
| | | | |
| Zimbabwe | El Salvador | |
|
|
RANK 520 | Benjamin Lock | 6-1 6-1 | Lluis Miralles | RANK |
RANK 1102 | Mehluli Don Ayanda Sibanda | 6-4 3-6 6-7(8) | Marcelo Arevalo | RANK 660 |
| Benjamin Lock / Courtney John Lock | 6-4 3-6 2-6 | Marcelo Arevalo / Lluis Miralles | |
RANK 520 | Benjamin Lock | 3-6 7-5 4-6 | Marcelo Arevalo | RANK 660 |
RANK 1102 | Mehluli Don Ayanda Sibanda | NOT PLAYED | Lluis Miralles | RANK |
| | | | |
| | | | |
| Benin | Hong Kong | |
|
|
RANK 1881 | Alexis Klegou | 6-1 4-6 1-4 RET | Hong Kit Wong | RANK 1059 |
RANK | Delmas N'tcha | 4-6 4-6 | Coleman Wong | RANK 1050 |
| Alexis Klegou / Sylvestre Monnou | 2-6 6-1 4-6 | Coleman Wong / Hong Kit Wong | |
RANK | Sylvestre Monnou | 6-4 6-4 | Ki Lung Ng | RANK |
RANK | Delmas N'tcha | NOT PLAYED | Hong Kit Wong | RANK 1059 |
| | | | |