Stefanos Tsitsipas (8), Greece, def. Sebastian Baez (12), Argentina, 7-5, 6-1.
Novak Djokovic (1), Serbia, def. Dominik Koepfer, Germany, 7-5, 6-3.
Tommy Paul (9), United States, def. Corentin Moutet, France, 7-6 (6), 6-3.
Lorenzo Musetti (11), Italy, def. Taylor Fritz (7), United States, 6-4, 7-5.
Carlos Alcaraz (2), Spain, def. Roman Safiullin, Russia, 6-4, 6-2.
Anna-Karolina Schmiedlova, Slovakia, def. Barbora Krejcikova (9), Czechia, 6-4, 6-2.
Adam Pavlasek and Tomas Machac, Czechia, def. Kevin Krawietz and Tim Puetz (2), Germany, 3-6, 6-1, 10-5.
Demi Schuurs and Wesley Koolhof, Netherlands, def. Sara Errani and Andrea Vavassori, Italy, 6-7 (4), 6-3, 11-9.
