Career
Göteborg Football Club
In December 2010, at the age of 18, Kollmats signed with Swedish side, Kopparbergs/Göteborg Football Club in the Damallsvenskan, the top division of women"s soccer in Sweden. During the 2012 season, Kollmats made 5 starts in 11 appearances for Göteborg playing a total of 496 minutes. Goteborg was runner-up for the Swedish Super Cup 2012 losing 2-1 to LdB Football Club Malmö.
In April 2013, Göteborg defeated 2012 Damallsvenskan champions, Tyresö FF to clinch the Swedish Supercup.
Kollmats returned to the Göteborg squad for the 2013 season. In August of that year, Kollmats suffered a cracked rib after colliding with goalkeeper Kristin Hammarstrom.