• Sebastian Ofner (Aut) bt Ruben Bemelmans (Bel) 5-7, 6-3, 6-1;
  • Gianluigi Quinzi (Ita) bt Sasi Kumar Mukund 6-1, 6-1;
  • Thiago Monteiro (Bra) bt Daniel Brands (Ger) 7-6 (5), 7-5;
  • Felix Auger-Aliassime (Can) bt Marcelo Arevalo (Esa) 6-7 (2), 6-1, 3-2 (retd.);
  • Simone Bolelli (Ita) bt Brayden Schnur (Can) 6-3, 7-6 (5);
  • Antoine Hoang (Fra) bt Andrej Martin (Svk) 6-1, 6-2;
  • Saketh Myneni bt Jason Jung (Tpe) 6-1, 5-7, 6-2;
  • Egor Gerasimov (Blr) bt Daniel Gimeno-Traver (Esp) 6-3, 3-6, 6-2.