Complex sentence: In October, she reached the quarterfinals in Zurich as a qualifier where she lost to second seed Ana Ivanovic, but the result nevertheless placed her in the top 50 rankings for the first time ever.
Split into simpler sentences: In October, she reached the quarterfinals in Zurich as a qualifier. There, she lost to second seed Ana Ivanovic but the result nevertheless placed her in the top 50 rankings for the first time ever.