Serena Williams ended her drought by defeating fellow American Jessica Pegula 6-3 6-4 in the women's final in New Zealand.
Serena Williams needed just 44 minutes to brush past Amanda Anisimova in the Auckland Open semi-finals.
Former Wimbledon runner-up Eugenie Bouchard has fallen outside the world's top 250 but showed a hint of past form with a fine Auckland win.
Only one Pan Pacific Open quarter-final was completed on Friday due to the rain in Osaka.
An ankle scare marked Serena Williams' fourth-round win at the US Open, where Ashleigh Barty and Karolina Pliskova were beaten.
Third seed Karolina Pliskova needed three sets to reach the fourth round but Serena Williams was dominant in progressing to the last 16.
Only five women's singles matches were completed at Flushing Meadows, where poor weather conditions prevented play outside.
Serena and Venus Williams lost three games between them as the American pair cruised through to the second round at Flushing Meadows.
Despite being a break down in both sets, Madison Keys beat Svetlana Kuznetsova to win the Western & Southern Open final.
Svetlana Kuznetsova demolished world number two Ashleigh Barty at the Western & Southern Open and will face Madison Keys in the final.