The women's parallel slalom competition of the FIS Snowboarding World Championships 2013 was held in Stoneham-et-Tewkesbury, Quebec on January 27, 2013. 45 athletes from 19 countries competed.
Qualification
Each participant takes one run on either of the courses. After the first run, only the top 16 are allowed a second run on the opposite course.
References
FIS Snowboarding World Championships 2013 – Women's parallel slalom Wikipedia(Text) CC BY-SA