RR1 - USA def UKR 1-2

R1 - Victoria Duval lt Elina Svitolina 4-6 1-6
R2 - Jack Sock lt Alexandr Dolgopolov 4-6 2-5
R3 - V.Duval/J.Sock def E.Svitolina/A.Dolgopolov 6-2 6-3


RR2 - USA lt AUS Gold 0-3

R1 - Serena Williams lt Jarmila Wolfe 5-7 1-2 ret.
R2 - Jack Sock lt Lleyton Hewitt 5-7 4-6
R3 - V.Duval/J.Sock lt J.Wolfe/L.Hewitt 6-7(4) 1-6


RR3 - USA def CZE 2-1

R1 - Jack Sock def Jiri Vesely 4-6 6-2 7-6(3)
R2 - Victoria Duval lt Karolina Pliskova 6-4 1-6 4-6
R3 - V.Duval/J.Sock def Ka.Pliskova/J.Vesely 7-6(5) 4-6 10-7