It’s another milestone week for the WTA with Serena Williams hitting 157 consecutive weeks at No.1, passing Martina Navratilova for the second-longest streak at No.1 in WTA history.

Williams’ streak began in 2013 after defeating Petra Kvitova in the quarterfinals of the Qatar Total Open; the American hadn’t been ranked No.1 in over two years after a foot injury and pulmonary embolism left her very career in question. Overcoming incredible adversity, a near-perfect 2012 season the the stage for the now-21-time Grand Slam champion to take back No.1 from Victoria Azarenka just over three years ago; she hasn’t reliquished the top spot since.

During this latest reign at No.1, Williams has won six major titles at all four Grand Slam tournaments – including two French and US Open titles – and remains one major victory away from tying Steffi Graff, who not only holds the Open Era record at 22 Grand Slam titles, but also has the longest streak for consecutive weeks at No.1 (186 weeks).