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| 16 | Andrei Stefan Apostol d. Andres Zepeda | 6-2; 7-6(5) |
| 16 | (7) Jan Zielinski d. (11) Runhao Hua | 6-4; 6-0 |
| 16 | Gerardo Lopez Villasenor d. (10) Thomas Adriano Tenreiro | 7-5; 6-1 |
| 16 | (5) Gustav Hansson d. (12) Farzin Danny Amiri | 6-4; 6-4 |
| 16 | (4) Daniel Kerznerman d. (9) Rafael Antonio Coutinho | 6-1; 2-6; 6-0 |
| 16 | Henry Craig d. Logan Smith | 6-1; 6-0 |
| 16 | (2) Vadym Kalyuzhnyy d. (16) Piotr Lomacki | 7-6(3); 6-3 |
| 16 | (15) Mohd Assri Merzuki d. (1) Siyu Liu | 7-5; 6-3 |
| 32 | Andrei Stefan Apostol d. (14) Shao-Chi Yang | 6-1; 6-0 |
| 32 | Andres Zepeda d. Drew Halbauer | 6-3; 6-7(1); 6-1 |
| 32 | (11) Runhao Hua d. Guy Orly Iradukunda | 6-1; 6-2 |
| 32 | (7) Jan Zielinski d. Julian Zlobinsky | 6-1; 7-5 |
| 32 | (10) Thomas Adriano Tenreiro d. Joseph Van Dooren | 1-6; 7-5; 6-2 |
| 32 | Gerardo Lopez Villasenor d. Justin Butsch | 6-2; 6-4 |
| 32 | (12) Farzin Danny Amiri d. Gian Issa | 6-2; 6-3 |
| 32 | (5) Gustav Hansson d. Roy Lederman | 6-3; 6-7(6); 6-3 |
| 32 | (9) Rafael Antonio Coutinho d. Daniel Shebshayevich | 6-3; 6-3 |
| 32 | (4) Daniel Kerznerman d. Alejandro Tabilo | 6-2; 6-2 |
| 32 | Logan Smith d. Alp Horoz | 2-6; 6-3; 7-5 |
| 32 | Henry Craig d. (3) Kamil Majchrzak | 6-1; 6-3 |
| 32 | (16) Piotr Lomacki d. William Bushamuka | 6-2; 3-6; 6-2 |
| 32 | (2) Vadym Kalyuzhnyy d. Mikheil Khmiadashvili | 6-4; 6-3 |
| 32 | (15) Mohd Assri Merzuki d. Javier Restrepo | 4-6; 6-3; 6-4 |
| 32 | (1) Siyu Liu d. Ognjen Samardzic | 7-6(4); 6-4 |
| 64 | (14) Shao-Chi Yang d. Tadas Babelis | 6-4; 4-6; 6-3 |
| 64 | Andrei Stefan Apostol d. Michael Antoine Gad | 6-0; 6-0 |
| 64 | Drew Halbauer d. Jose Andres Morales Hernandez | 7-6(5); 6-2 |
| 64 | Andres Zepeda d. (8) Juan Sebastian Marino | 6-4; 6-3 |
| 64 | (11) Runhao Hua d. Ugo Santomenna | 6-2; 6-1 |
| 64 | Guy Orly Iradukunda d. Marcelo Lorenzo Balderrama | 6-1; 6-1 |
| 64 | Julian Zlobinsky d. Kei Inoue | 6-2; 6-1 |
| 64 | (7) Jan Zielinski d. Vasiliy Kichigin | 6-2; 6-4 |
| 64 | (10) Thomas Adriano Tenreiro d. Vineet Naran | 6-3; 6-1 |
| 64 | Joseph Van Dooren d. Tunde Segodo | 7-5; 6-1 |
| 64 | Justin Butsch d. Zhicheng Zhu | 6-2; 6-2 |
| 64 | Gerardo Lopez Villasenor d. (6) Andrey Rublev | 7-6(3); 4-6; 6-2 |
| 64 | (12) Farzin Danny Amiri d. Woravin Kumthonkittikul | 7-6(5); 6-1 |
| 64 | Gian Issa d. Alexander Day | 6-1; 6-2 |
| 64 | Roy Lederman d. Stefan Emilio Gonzalez | 6-0; 6-4 |
| 64 | (5) Gustav Hansson d. Joshua Chetty | 6-0; 6-0 |
| 64 | (9) Rafael Antonio Coutinho d. Sebastian Santibanez | 7-6(2); 3-6; 6-4 |
| 64 | Daniel Shebshayevich d. Rogelio Siller | 6-4; 5-7; 7-6(5) |
| 64 | Alejandro Tabilo d. Bernardo Repsold De Sanson | 7-5; 7-5 |
| 64 | (4) Daniel Kerznerman d. Luis Valero | 6-4; 6-0 |
| 64 | Alp Horoz d. (13) Ren Nakamura | 6-3; 6-7(5); 6-2 |
| 64 | Logan Smith d. Viktor Kostin | 6-1; 6-3 |
| 64 | Henry Craig d. Yifan Dang | 6-3; 6-3 |
| 64 | (3) Kamil Majchrzak d. Rolando Torrellas | 6-3; 6-0 |
| 64 | (16) Piotr Lomacki d. Anthony Schohn | 6-2; 6-3 |
| 64 | William Bushamuka d. Lucas Omer Dages | 6-4; 6-3 |
| 64 | Mikheil Khmiadashvili d. Stanislav Korshunov | 7-5; 6-3 |
| 64 | (2) Vadym Kalyuzhnyy d. Ciro Riccardi | 7-5; 4-6; 6-4 |
| 64 | (15) Mohd Assri Merzuki d. Basil Khuma | 7-5; 1-6; 6-2 |
| 64 | Javier Restrepo d. Andres Alfonzo Paredes | 7-6(5); 6-3 |
| 64 | Ognjen Samardzic d. Tom Hill | 6-1; 4-3; Retired |
| 64 | (1) Siyu Liu d. Youssef Tamimount | 6-4; 6-4 |
