| 17th May - 13h30 |  Chih-Yuan Chuang | def. |  Shihao Wei | 4-3 (5-11, 11-7, 11-4, 11-3, 6-11, 7-11, 11-8) |
| 17th May - 13h30 |  Kirill Skachkov | def. |  Darko Jorgic | 4-2 (11-9, 5-11, 11-6, 6-11, 14-12, 11-6) |
| 17th May - 13h30 |  Shunsuke Togami | def. | Masataka Morizono | 4-1 (6-11, 14-12, 11-4, 11-9, 11-5) |
| 17th May - 13h30 |  Benedikt Duda | def. | Yukiya Uda | 4-1 (11-7, 11-9, 3-11, 11-6, 11-6) |
| 17th May - 13h30 |  Robin Devos | def. | Florent Lambiet | 4-3 (11-7, 11-6, 7-11, 11-6, 5-11, 7-11, 11-5) |
| 17th May - 13h30 |  Kristian Karlsson | def. |  Can Akkuzu | 4-1 (6-11, 11-5, 11-7, 7, 11-8) |
| 17th May - 13h30 | Anton Kallberg | def. |  Kanak Jha | 4-3 (11-13, 8-11, 11-6, 11-9, 9-11, 12-10, 11-8) |
| 17th May - 13h30 | Tomislav Pucar | def. | Takuya Jin | 4-1 (11-7, 13-11, 7-11, 11-3, 11) |
| 16th May - 15h40 | Chih-Yuan Chuang | def. | Jules Rolland | 4-1 (11-6, 11-9, 11-5, 10-12, 11-8) |
| 16th May - 15h40 | Shihao Wei | def. | Alexander Shibaev | 4-1 (11-3, 12-10, 9-11, 11-9, 11-4) |
| 16th May - 15h40 | Shunsuke Togami | def. | Deni Kozul | 4-2 (11-3, 3-11, 8-11, 11-4, 11-8, 11-5) |
| 16th May - 15h40 | Masataka Morizono | def. | Mikhail Paykov | 4-2 (11-4, 7-11, 11-6, 5-11, 11-8, 11-5) |
| Robin Devos | def. |  Marek Badowski | 4-0 (11-4, 11-5, 11-8, 11-7) |
| 16th May - 15h40 | Florent Lambiet | def. |  Marcelo Aguirre | 4-1 (6-11, 11-6, 11-5, 11-9, 11-9) |
| 16th May - 15h40 | Anton Kallberg | def. |  Yevhen Pryshchepa | 4-1 (11-9, 11-5, 7-11, 11-3, 11-7) |
| 16th May - 15h40 | Kanak Jha | def. |  Aliaksandr Khanin | 4-0 (11-8, 11-4, 4, 11-7) |
| 16th May - 15h40 | Takuya Jin | def. |  Gustavo Tsuboi | 4-0 (11-6, 11-6, 11-9, 11-8) |
| 16th May - 15h40 | Tomislav Pucar | def. | Kenta Tazoe | 4-2 (11-5, 11-9, 11-2, 9-11, 11-13, 14-12) |
| 16th May - 15h40 | Kirill Skachkov | def. |  Brian Afanador | 4-3 (4-11, 7-11, 11-9, 12-10, 5-11, 11-9, 11-5) |
| 16th May - 15h40 | Darko Jorgic | def. |  Amalraj Anthony Arputharaj | 4-1 (11-7, 11-9, 9-11, 11-9, 11-6) |
| 16th May - 15h40 | Benedikt Duda | def. | Thiago Monteiro | 4-2 (9-11, 13-11, 11-6, 9-11, 11-4, 11-6) |
| 16th May - 15h40 | Yukiya Uda | def. |  Zokhid Kenjaev | 4-0 (11-6, 11-6, 12-10, 11-8) |
| 16th May - 15h40 | Can Akkuzu | def. | Martin Allegro | 4-2 (10-12, 10-12, 14-12, 12-10, 12-10, 11-7) |
| 16th May - 15h40 | Kristian Karlsson | def. | Elias Ranefur | 4-1 (6-11, 11-7, 11-8, 11-9, 15-13) |
| 16th May - 11h40 | Robin Devos | def. | Wang-Wei Peng | 4-1 (11-8, 12-10, 7-11, 11-8, 11-5) |
| 16th May - 11h40 | Chih-Yuan Chuang | def. | Ronit Bhanja | 4-1 (8-11, 14-12, 11-5, 11-6, 11-7) |
| 16th May - 11h40 | Aliaksandr Khanin | def. | Maksim Grebnev | 4-3 (9-11, 9-11, 11-4, 11-9, 4-11, 11-3, 11-7) |
| 16th May - 11h40 | Deni Kozul | def. | Manav Vikash Thakkar | 4-0 (11-6, 11-9, 12-10, 11) |
| 16th May - 11h40 | Florent Lambiet | def. | Vildan Gadiev | 4-2 (8-11, 11-9, 7-11, 11-8, 11-5, 11-6) |
| 16th May - 11h40 | Jules Rolland | def. | Frane Kojic | 4-2 (5-11, 11-9, 2-11, 11-6, 6, 11-8) |
| 16th May - 11h40 | Kanak Jha | def. |  Alexandru Cazacu | 4-2 (11-6, 11-5, 5-11, 11-3, 6-11, 11-9) |
| 16th May - 11h40 | Mikhail Paykov | def. | Pavel Platonov | 4-2 (10-12, 11-7, 8-11, 11-7, 7, 11-9) |
| 16th May - 11h40 | Marcelo Aguirre | def. |  Carlos Machado | 4-2 (11-9, 9-11, 11-8, 7-11, 11-5, 11-5) |
| 16th May - 11h40 | Shihao Wei | def. |  Andreas Levenko | 4-1 (11-5, 4-11, 11-7, 11-5, 11-8) |
| 16th May - 11h40 | Masataka Morizono | def. | Truls Moregard | 4-1 (11-6, 11-7, 12-10, 8-11, 11-5) |
| 16th May - 11h40 | Yevhen Pryshchepa | def. | Andrej Gacina | 4-2 (9-11, 11-13, 11-8, 8, 11-6, 11-5) |
| 16th May - 11h40 | Alexander Shibaev | def. |  Juan Lamadrid | 4-0 (11-7, 11-3, 11-6, 11-3) |
| 16th May - 11h40 | Marek Badowski | def. |  Lubomir Pistej | 4-1 (8-11, 11-6, 11-8, 12-10, 11-9) |
| 16th May - 11h40 | Anton Kallberg | def. | Hibiki Tazoe | 4-0 (11-8, 11-9, 12-10, 11-9) |
| 16th May - 11h40 | Shunsuke Togami | def. | Eric Jouti | 4-0 (11-5, 11-8, 11-9, 11-4) |
| 16th May - 12h30 | Darko Jorgic | def. | Aleksandr Didukh | 4-1 (11-9, 15-13, 13-11, 9-11, 11-8) |
| 16th May - 12h30 | Can Akkuzu | def. |  Shuainan Chen | 4-3 (13-11, 9-11, -9, 11-5, 11-8, 6-11, 11-6) |
| 16th May - 12h30 | Tomislav Pucar | def. | Kenta Matsudaira | 4-1 (19-17, 10-12, 11-9, 11-8, 11-8) |
| 16th May - 12h30 | Benedikt Duda | def. | Yuto Kizukuri | 4-1 (7-11, 11-7, 11-5, 11-7, 11-4) |
| 16th May - 12h30 | Martin Allegro | def. | Ivan Nikulin | 4-1 (7-11, 11-5, 11-7, 11-8, 12-10) |
| 16th May - 12h30 | Kirill Skachkov | def. | Yuki Hirano | 4-3 (9-11, 11-5, 3-11, 4-11, 13-11, 11-8, 11-7) |
| 16th May - 12h30 | Thiago Monteiro | def. | Nils Hohmeier | 4-0 (14-12, 11-7, 7, 11-9) |
| 16th May - 12h30 | Gustavo Tsuboi | def. |  Padasak Tanviriyavechakul | 4-1 (11-4, 11-7, 11-8, 10-12, 11-7) |
| 16th May - 12h30 | Elias Ranefur | def. |  Horacio Cifuentes | 4-0 (13-11, 14-12, 11-5, 11-9) |
| 16th May - 12h30 | Brian Afanador | def. | Samuel Novota | 4-1 (11-5, 8-11, 14-12, 11-8, 11-7) |
| 16th May - 12h30 | Yukiya Uda | def. | Antoine Hachard | 4-3 (5-11, 8-11, 11-8, 11-9, 9-11, 13-11, 11-8) |
| 16th May - 12h30 | Takuya Jin | def. | Alexey Liventsov | 4-0 (11-6, 11-6, 11-7, 11-3) |
| 16th May - 12h30 | Kristian Karlsson | def. |  Gavin Rumgay | 4-3 (11-4, 8-11, 3-11, 11-6, 7-11, 11-7, 11-3) |
| 16th May - 12h30 | Amalraj Anthony Arputharaj | def. | Dang Qiu | 4-0 (12-10, 16-14, 11-9, 11-8) |
| 16th May - 12h30 | Zokhid Kenjaev | def. | Quentin Robinot | 4-1 (11-9, 5-11, 11-8, 11-9, 11-3) |
| 16th May - 12h30 | Kenta Tazoe | def. |  Marcos Madrid | 4-3 (11-4, 11-9, 10-12, 11-6, 7-11, 8-11, 11-5) |
