Her career high
WTA-ranking was attained on 17 April 2006, when she reached No. 52. Her highest doubles ranking was reached on 2 October 2006, when she reached No. 99. She enjoyed her breakthrough in 2003 when she reached the final at the
Estoril Open in Portugal as a qualifier. During her career, she has beaten two Top 10-ranked players so far –
Anastasia Myskina at the
2005 Qatar Total German Open and
Elena Dementieva at the
2006 Australian Open. She also has notched wins against top players such as
Jelena Janković,
Katarina Srebotnik,
Flavia Pennetta,
Jelena Dokić,
Elena Likhovtseva and
Alona Bondarenko. Schruff has won her first ITF tournament in
Latina, Lazio, where she defeated fellow German
Andrea Petkovic in the final. == WTA career finals ==