- Harald J. Rønneberg, Princess Märtha Louise
- 52428 metre(s)
- Norway (Lørenskog, Norway)
The greatest distance cross country skiing indoors in 12 hours is 52,428m achieved by Harald J. Rønneberg and Princess Märtha Louise (both Norway) at SNØ, Lørenskog, Norway on 5 January 2021.
This record was chosen to honor the tradition of cross country skiing, the national sport of Norway.