[1] Stoltenberg's ice hockey club career began in 2008 and has been played entirely with HPK Kiekkonaiset, the women's representative ice hockey team of the sports club Hämeenlinnan Pallokerho [fi] in Hämeenlinna.
[2] She holds the record for most games played with HPK (with over 100 more appearances than the second-ranked player) and is second on the list of all-time points scored for the club.
She currently[needs update] ranks first on the list of most games played by a defenseman active in the Naisten Liiga and trails only Karoliina Rantamäki for most games played of all players active in the Naisten Liiga.
[8] As a junior player with the Finnish national under-18 team, Stoltenberg competed at the IIHF U18 Women's World Championship in 2008 and 2009.
Her first appearance at the Universiade was the women's ice hockey tournament at Harbin 2009, where she contributed two goals and two assists in seven games to Finland’s bronze medal performance.