Kristiansen played for the clubs Mjøndalen IF and Reistad IL, and then for IK Våg from 2009 to 2011. With Våg she placed second in the Norwegian Cup in 2011. From 2011 to 2015 she played for Glassverket IF, and placed second in the Norwegian League with Glassverket in 2015.[3]
On 12 January 2023 it was announced that she is expecting her first child with her partner, Hungarian Ádám Devecseri, former canoeist and later the physiotherapist of Győri ETO KC.[5] Their daughter, Olivia was born on 17 July 2023. Kristiansen got engaged to Devecseri in August 2024. Later, on 24 August they announced they're expecting their second child.[6]
^Haraldsen, Stian (2016). "De 25 medaljemesterskapene". Gode som gull. 30 år med håndballjentene (in Norwegian). Oslo: Aschehoug. pp. 144–159. ISBN978-82-03-29618-5.