 Gentzel won the silver medal in the 1000 m at the 1926 Women's World Games.Gentzel held Swedish titles in the 200 m in 1929 and in the 800 m in 1928–31.She worked as a piano teacher in Nyköping and often appeared on the Swedish radio as a member of the vocal group Trio Rita, together with Ulla Castegren and Anna-Lisa Cronström.