Ashleigh Barty, who won in Stuttgart at the weekend, remains comfortably the world number one for the 70th week, 1,855 points ahead of the Japanese Naomi Osaka in the WTA rankings published on Monday. 

The Australian, who opted to skip much of the 2020 season due to Covid-19 safety concerns, has benefitted from an interim system, put in place for the duration of the pandemic, allowing players to count their best 16 tournaments dating back to March 2019 instead of the usual 52-week cycle.