Complex sentence: In 2007 she broke the record of 2577 set by Susan Polgar for the second-highest ranked female player in Chess history and became the second female player ever, after Judit Polgar, to exceed the 2600 Elo mark.
Split into simpler sentences: In 2007 she surpassed the rating of 2577 set by Susan Polgar to become the second-highest ranked female player in Chess history. She became the second female player ever, after Judit Polgar, to exceed the 2600 Elo mark.