Canada's Raonic rises to No. 37 in ATP rankings

Milos Raonic of Thornhill, Ont., lost Sunday's final in Memphis but maintained his rapid ascent up the ATP rankings, rising to to 37th in the world after beginning the season at No. 156.

Despite losing Sunday's final in Memphis, Milos Raonic has continued his rapid ascent up the ATP rankings — making Canadian tennis history in the process.

The 20-year-old from Thornhill, Ont., jumped 22 places to reach No. 37.

He finished 2010 ranked as No. 156.

Raonic becomes the highest ranked Canadian singles player in the history of the ATP.

Vancouver's Rebecca Marino, meanwhile, vaulted 20 places to No. 60 in the WTA rankings.

The 20-year-old reached Saturday's final in Memphis, but had to retire with a left abdominal strain down 6-2 to Magdalena Rybarikova of Slovakia.

Raonic was beaten 7-6 (7), 6-7 (11), 6-4 by American Andy Roddick in the final of the Regions Morgan Keegan Championships on Sunday. Roddick remained at No. 8 in the rankings.

Raonic earned  $122,000 US in prize money as runner-up.

The hard-serving Canadian had won the previous weekend in San Jose, Calif., and his record stands at 12-3 on tour this season.

He is headed to Mexico to prepare for Canada's upcoming Davis Cup tie against Mexico at the 500 event next week in Acapulco, where he has been granted a wild card.

There were no changes in the ATP's top five Monday with Spain's Rafael Nadal leading Roger Federer of Switzerland, Novak Djokovic of Serbia, Robin Soderling of Sweden, and Andy Murray of Britain.

On the women's side, Denmark's Caroline Wozniacki reclaimed top spot, relegated Kim Clijsters of Belgium to No. 2, followed by Vera Zvonareva of Russia, Sam Stosur of Australia and Francesca Schiavone of Italy.