Fri, 5 Aug
Stadium CSC - Semifinals
(1) Daniil Medvedev RUS   7 6
(4) Miomir Kecmanovic SRB   60 1
Winner: D. MEDVEDEV Time : 01:26:52
Stadium CSC - Semifinals
(3) Cameron Norrie GBR   6 3 6
(2) Felix Auger-Aliassime CAN   4 6 3
Winner: C. NORRIE Time : 02:19:31
Grandstand Caliente Mx - Semifinals
(4) Raven Klaasen RSA
Marcelo Melo BRA
  6 6
Tomas Martin Etcheverry ARG
Chun-Hsin Tseng TPE
  3 3
Winners: KLAASEN / MELO Time : 01:08:50
Grandstand Caliente Mx - Semifinals
(1) Santiago Gonzalez MEX
Andres Molteni ARG
  6 5 11
William Blumberg USA
Miomir Kecmanovic SRB
  3 7 13
Winners: BLUMBERG / KECMANOVIC Time : 01:40:37