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