 Yuki Matsuyama | def. |  Lauric Jean | 4-2 (5-11, 11-8, 11-6, 7-11, 12-10, 11-8) |
 Minhyeok Kim | def. |  Pak Nam Ng | 4-0 (11-7, 11-5, 11-2, 11-8) |
 Artur Abusev | def. |  Abdel-Kader Salifou | 4-1 (11-8, 11-7, 5-11, 11-9, 11-4) |
| Seungmin Cho | def. |  Andrei Putuntica | 4-1 (11-6, 11-4, 11-7, 7-11, 11-8) |
 Nima Alamian | def. |  Diogo Carvalho | 4-3 (9-11, 11-4, 11-13, 11-7, 7, 8-11, 12-10) |
 Vitor Ishiy | def. | Diogo Chen | 4-0 (11-5, 11-4, 12-10, 11-9) |
| Hon Ming Li | def. |  Simon Pfeffer | 4-1 (11-4, 11-6, 2-11, 12-10, 13-11) |
| Robert Gardos | def. | Asuka Machi | 4-2 (10-12, 8-11, 11-7, 11-4, 11-9, 11-3) |
| Lauric Jean | def. | Kwan Kit Ho | 4-1 (11-8, 14-12, 13-11, 4-11, 12-10) |
| Yuki Matsuyama | def. |  Daniel Kosiba | 4-1 (11-8, 11-5, 8-11, 11-6, 11-7) |
| Minhyeok Kim | def. | Andréa Landrieu | 4-1 (13-11, 11-9, 7-11, 11-6, 14-12) |
| Pak Nam Ng | def. |  Supanut Wisutmaythangkoon | 4-2 (10-12, 11-9, 11-8, 11-6, 6-11, 11-6) |
| Abdel-Kader Salifou | def. |  Jesus Cantero | 4-2 (7-11, 13-15, 11-8, 8, 11-5, 12-10) |
| Artur Abusev | def. |  Ingemar Peter | 4-0 (11-8, 11-7, 11-9, 11-7) |
| Andrei Putuntica | def. |  David Reitspies | 4-1 (11-5, 11-7, 10-12, 11-8, 11-3) |
| Seungmin Cho | def. |  Alexandru Cazacu | 4-0 (11-7, 11-9, 11-6, 11-8) |
| Diogo Carvalho | def. | Siu Hang Lam | 4-2 (11-9, 11-13, 11-2, 12-10, 4-11, 11-5) |
| Nima Alamian | def. | Maksim Kiselev | 4-1 (11-8, 11-8, 5-11, 11-8, 11-9) |
| Diogo Chen | def. | Man Ho Kwan | 4-0 (11-6, 11-9, 11-1, 11-8) |
| Vitor Ishiy | def. | Kazuhiro Yoshimura | 4-2 (11-8, 11-7, 9-11, 11-7, 11-13, 11-9) |
| Simon Pfeffer | def. |  Luka Mladenovic | 4-3 (8-11, 11-5, 11-3, 10-12, 11-1, 10-12, 11-4) |
| Hon Ming Li | def. | Endika Diez | 4-2 (9-11, 7-11, 11-9, 13-11, 11-5, 11-7) |
| Asuka Machi | def. |  Shuainan Chen | 4-0 (11-6, 11-3, 11-8, 11-6) |
| Robert Gardos | def. |  Chun-Yu Tsai | 4-1 (11-9, 11-7, 11-4, 6-11, 11-6) |
| Kwan Kit Ho | def. | Joan Masip | 4-1 (8-11, 11-8, 11-7, 11-6, 11-5) |
| Lauric Jean | def. | Daniel Palacios | 4-1 (12-10, 9-11, 11-5, 11-6, 11-7) |
| Daniel Kosiba | def. | Joe Seyfried | 4-2 (15-13, 11-2, 8-11, 11-9, 1-11, 11-8) |
| Yuki Matsuyama | def. | Jaehyun An | 4-3 (11-4, 10-12, 10-12, 13-11, 11-7, 13-15, 11-6) |
| Andréa Landrieu | def. | Jakub Zelinka | 4-1 (11-7, 9-11, 11-6, 11-8, 13-11) |
| Minhyeok Kim | def. | Marco Rech Daldosso | 4-0 (11-6, 11-9, 11-5, 11-6) |
| Supanut Wisutmaythangkoon | def. |  Raj Mondal | 4-3 (9-11, 11-3, 11-7, 11-13, 11-5, 7-11, 11-6) |
| Pak Nam Ng | def. |  Xuqi Lin | 4-1 (11-9, 6-11, 11-8, 11-6, 11-9) |
| Abdel-Kader Salifou | def. | Nikita Artemenko | 4-2 (11-8, 11-9, 12-14, 11-7, 11-13, 11-8) |
| Jesus Cantero | def. | Alexander Chen | 4-1 (12-10, 11-5, 5, 8-11, 11-8) |
| Ingemar Peter | def. |  Nicolas Galvano | 4-0 (11-8, 12-10, 13-11, 11-8) |
| Artur Abusev | def. | Tamas Lakatos | 4-3 (5-11, 11-8, 11-9, 7-11, 5-11, 11-9, 11-8) |
| David Reitspies | def. | Thiago Monteiro | 4-1 (11-7, 11-8, 11-6, 3-11, 12-10) |
| Andrei Putuntica | def. |  Denis Zholudev | 4-1 (11-3, 10-12, 11-5, 11-9, 13-11) |
| Alexandru Cazacu | def. | Hyunjo Lim | 4-0 (15-13, 11-5, 11-3, 11-8) |
| Seungmin Cho | def. | Guillermo Martinez | 4-2 (10-12, 9-11, 11-8, 11-2, 11-3, 11-4) |
| Siu Hang Lam | def. |  Mohammed Abdulwahhab | 4-1 (10-12, 11-4, 12-10, 11-6, 11-5) |
| Diogo Carvalho | def. |  Juan Lamadrid | 4-3 (10-12, 11-9, 8-11, 11-6, 9-11, 11-3, 11-6) |
| Maksim Kiselev | def. | Carlos Machado | 4-1 (11-3, 11-8, 12-10, 7-11, 11-6) |
| Nima Alamian | def. | David Serdaroglu | 4-0 (11-8, 11-7, 12-10, 11-5) |
| Man Ho Kwan | def. |  Aliaksandr Khanin | 4-3 (11-9, 11-6, 11-13, 11-8, 9-11, -9, 11-9) |
| Diogo Chen | def. |  Philipp Floritz | 4-3 (13-11, 10-12, 5-11, 11-8, 11-6, 3-11, 11-1) |
| Vitor Ishiy | def. | Miad Lotfijanabadi | 4-0 (11-4, 11-2, 11-8, 11-7) |
| Kazuhiro Yoshimura | def. | Petr Fedotov | 4-3 (9-11, 7-11, 15-13, 11-7, 11-6, 8-11, 11-9) |
| Simon Pfeffer | def. |  Kanak Jha | 4-2 (8-11, 11-9, 5-11, 11-5, 11-8, 11-4) |
| Luka Mladenovic | def. |  Tobias Hippler | 4-2 (11-2, 4-11, 11-4, 3-11, 11-9, 11-6) |
| Endika Diez | def. | Eric Glod | 4-2 (9-11, 11-3, 11-9, 11-5, 9-11, 11-7) |
| Hon Ming Li | def. | Horacio Cifuentes | 4-0 (11-6, 11-6, 11-3, 12-10) |
| Shuainan Chen | def. | Pavel Platonov | 4-1 (14-12, 5-11, 11-7, 12-10, 11-8) |
| Asuka Machi | def. | Carlos Franco | 4-1 (11-7, 8-11, 11-7, 11-5, 11-7) |
| Chun-Yu Tsai | def. |  Daniel Gonzalez | 4-0 (11-7, 11-7, 11-3, 11-6) |
| Robert Gardos | def. | Martin Guman | 4-0 (15-13, 11-5, 11-6, 11-6) |
