The accolades keep on coming for American Melanie Oudin. Thanks to her quarterfinal appearance in Ponte Vedra Beach, the rising star jumped from No.41 to a career-high of No.36 - her Top 40 debut - on the new rankings.

Go to this week's Sony Ericsson WTA Tour Rankings!

Oudin, whose other highlights this year include a semifinal showing in Paris [Indoors] and a quarterfinal run in Memphis, cracked the Top 50 for the first time following her dramatic march to the semifinals of last September's US Open. The 18-year-old, who will try to improve on last year's Family Circle Cup round of 16 showing this week in Charleston, has a good chance to ascend the rankings further, as she did not play in any of the pre-Roland Garros European clay court events in 2009, but is expected to play in Rome and Madrid this year.

Also making noise was Serena Williams, who despite being inactive since the Australian Open, is spending her 98th career week at No.1, tied with Lindsay Davenport for seventh all-time. She has a chance to catch sixth place Justine Henin at 117 weeks later this year, though the 2009 Roland Garros quarterfinalist, Wimbledon champion and US Open semifinalist will have a lot of points to defend in the coming months.

Two of last week's quarterfinalists in Marbella, both of whom were making their Sony Ericsson WTA Tour main draw debuts, made the two biggest ranking jumps of the week of those in the Top 200. Beatriz García Vidagany went from No. 258 to No.195 and Simona Halep went from No.166 to No.145.