Kevin Anderson swept aside teenage sensation Borna Coric to move into the Winston-Salem Open semi-finals.
Petra Kvitova and Caroline Wozniacki will meet in the semi-finals of the Connecticut Open at New Haven.
British quartet Kyle Edmund, Brydan Klein, Johanna Konta and Naomi Broady moved one step closer to US Open qualification.
Andy Murray will face Nick Kyrgios in the first round of the US Open and could meet Roger Federer in the semi-finals.
Heather Watson has been handed a winnable tie against America's Lauren Davis in round one of the US Open.
We take a closer look at Andy Murray's potential route to glory at Flushing Meadows.
Check out all the singles and doubles draws for the US Open 2015, updated regularly each day and including live scores
Kyle Edmund has reached the second qualifying round at this year's US Open.
Second seed Kevin Anderson is through to the quarter-finals of the Winston-Salem Open.
Caroline Wozniacki has battled her way into the quarter-finals of the Connecticut Open.