Club career 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. She played for the Danish club
FC Midtjylland from 2015 to 2018, and won the Danish Cup with this club in 2015. From 2018 she played for the Hungarian club
Győri ETO KC, winning the
Hungarian Championship in
2018/2019. She also won the
EHF Champions League with Győr in
2019 and
2024.
International career Playing for the
Norwegian national team, Kristiansen won gold medal at the
2014 European Women's Handball Championship. She won gold medal with Norway at the
2015 World Women's Handball Championship, defeating Netherlands in the final. At the
2016 Summer Olympics she won bronze medal with Norway, after losing the semi final to Russia, and winning the bronze final against the Netherlands. At the
2016 European Women's Handball Championship in Sweden she won a gold medal with the Norwegian team. She also played at the
2017 World Women's Handball Championship in Germany, when Norway won the silver medals. She won another gold medal with Norway at the
2020 European Women's Handball Championship in Denmark. At the
2020 Summer Olympics held in 2021, she won the bronze medal with the Norwegian team. She won gold medal with the Norwegian team at the
2021 World Women's Handball Championship. At the
2025 World Championship she won her third World Cup gold medals.{{Cite web |date=5 November 2025|title=To debutanter i Gjekstads VM-tropp ==Achievements==