Lorenzo Musetti (1), Italy, def. Alibek Kachmazov, Russia, 6-4, 6-2. Yuki Bhambri, India, and Albano Olivetti (3), France, def. Ivan Dodig, Croatia, and Rafael Matos (2), Brazil, 6-3, 7-6 (9).
Adrian Mannarino (5), France, def. Yi Zhou, China, 7-6 (3), 2-6, 6-4. John-Patrick Smith, Australia, and Miguel Angel Reyes-Varela (4), Mexico, def. David Pel and ...