With Petra Kvitova, Lucie Safarova, Ekaterina Makarova and Angelique Kerber all in the Top 10 this week, at No.2, No.7, No.8 and No.10, respectively, it's an historic week for left-handers on the WTA.
It's the first time in WTA Rankings history that four lefties are in the Top 10 together.
With Makarova joining Kvitova and Kerber in the Top 10 in January, this year was already historic - it had been 32 years since three lefties were in the Top 10 together, the last time that happened being the Australian Open fortnight in January 1983 (Martina Navratilova, Sylvia Hanika and Barbara Potter).
Two of the current foursome, Makarova and Kerber, squared off in an all-lefty battle in Stuttgart this year (highlights above) and they both talked about how it feels to play against a fellow Southpaw.
"For sure it's different to play against a lefty because you're practicing and playing most of the time with right-handers," Kerber said that day. "The serve is much different, and hitting the returns, too, so for sure it is much different. But that's why I made sure I warmed up with another lefty this morning!"
"It's unusual, and a little bit uncomfortable for us," Makarova said. "Sometimes I think about how I'd play from the other side so I can maybe predict what kinds of shots are going to come to my side."
With these four in the Top 10 now, playing lefties on the tour might not be so unusual anymore. But a fifth lefty in the Top 10 might not happen too soon - the next-highest-ranked lefty is No.37 in the world.
WTA Rankings began the week of November 3, 1975, with WTA legend Chris Evert as the first No.1.
Here are a few more random facts about left-handers on the WTA:
Left-Handed Grand Slam Finalists:
Only lefty to beat Serena at a Grand Slam: