The Öberg sisters hit Annecy at the start of the 10 km hunt.
Elvira Öberg snatched her first individual World Cup victory after impressive riding.
At the same time, big sister Hanna was able to catch up on the last lap and pass Marte Olsbu Røiseland to secure third place.
Elvira Öberg was 4.2 seconds ahead of Julia Simon who finished second, Hanna was 11.6 seconds behind Elvira into the finish.
The text is updated.