Kristrún's first senior games where for the joint team of ÍR/Breiðablik in the second-tier league.
[1] After ÍR's relegation that season, she transferred to Haukar[2] where she won back-to-back national championships in 2006 and 2007.
[5] During her first season with Hamar, she averaged 17.5 points per game and helped the team to the national championship finals for the first time.
She helped Skallagrímur win the 1. deild in 2016 and return to the Úrvalsdeild for the first time since 1976.
[10] From 2005 to 2014, Kristrún played 34 games for the Icelandic national basketball team.