Of the Roland Garros contenders, these 5 ladies have had the highest jump in rankings since January.
Hsieh: Current Ranking: 64 Jump: 108
First Round Opponent: Pennetta
Bertens: Current Ranking: 89 Jump: 93
First Round Opponent: TBD – (currently in qualifying rounds)
Babos: Current Ranking: 65 Jump: 89
First Round Opponent: Zvonereva
Lepchenko: Current Ranking: 61 Jump: 66
First Round Opponent: Pervak
Hampton: Current Ranking: 88 Jump: 57
First Round Opponent: Rus, who is ranked lower than her, but her 2nd round matchup is against Serena Williams.
NOTE: Kiki Bertens has the highest WTA winning % for this year at 100% (higher than Serena Williams). She is the only top 100 player with no losses. However, she'd only played 5 matches before this week.