Tournaments in St Petersburg, Hua Hin

Now that the 2019 Australian Open has been run and done, the spotlight now shines on the WTA and ATP tours.

Firstly, significant ranking moves following the Australian Open.

Stefanos Tsitsipas  up from 15 to 12, a career high

Lucas Pouille  up from 31 to 14

Roberto Bautista Agut  up from 24 to 18

Frances Tiafoe  up from 39 to 30, a career high

Naomi Osaka  up from 4 to 1, a career high 

Petra Kvitová  up from 6 to 2, an equal career high

Danielle Collins  up from 35 to 23, a career high 

Anastasia Pavlyuchenkova  up from 44 to 32

This week, there are two WTA tournaments on the calendar, and while no ATP events are scheduled, Davis Cup qualifiers will keep a number of players busy representing their respective countries.

WTA 

The St Petersburg Ladies Trophy - a Premier category tournament, on Hard, Rebound Ace, in St Petersburg, Russia.

Defending champion:

Petra Kvitová who defeated Kristina Mladenovic 6-1 6-2

Petra Kvitová, world number two, is top seed.

The other seven seeds are all in the top thirty, two of them in the top ten.

The top four seeds have first round byes.

The Toyota Thailand Open - an International category tournament, on Hard, Plexipave, in Hua Hin, Thailand.

Defending champion:

Not held in 2018

Garbiñe Muguruza, world number fifteen, is top seed.

The other seven seeds are all in the top sixty.

No byes.

Completed:

First round 

Ajla Tomljanovic (6) defeated Stefanie Voegele 6-1 7-6(6)