By Nick Georgandis

Bernard Tomic’s win at Sydney in advance of the Australian Open sent him soaring up the latest ATP rankings, rising 21 spots to No. 43 in the world.

It’s the Aussie’s highest ranking since last October, and made him the biggest climber in the Top 100 this week.

He defeated South Africa’s Kevin Anderson, who himself moved up five spots to No. 31. The entire top 30 stayed unchanged, something unlikely to repeat itself two weeks hence after the result of the first Grand Slam.

In the WTA rankings, there was one minor shift in the Top 20, with Dominika Cibulkova regaining the No. 14 slot from Maria Kirilenko.

Cibulkova reached the finals at Sydney, defeating three top eight players before falling to Agnieszka Radwanska in the final.
There were a bevy of moves just outside the women’s Top 20, most notably American Sloane Stephens, who jumped four spots to No. 25, surpassing Venus Williams, among others.

Stephens, who won’t turn 20 for another two months, is the youngest player in the Top 25 by some two years. She impressed with a semifinal trip at Hobart to start the season after reaching the Brisbane quarterfinals.