Monomancy (a Sabbat ritual for settling disputes usually reserved for members who have aged out of being a young stupid hothead who would kill a pack mate for drinking from a vessel they decided they liked) is usually a duel to the death, but if I remember correctly it is not an extremely rigid thing.
Would you consider something like a walk from a point in Los Angeles across the Mojave Desert to a point in Las Vegas with:
-no vehicles,
-no weapons (except for the tools listed below),
-no disciplines,
-no helpers,
- no tents or other tools aside from a map, compass, and maybe a shovel,
-land the only food you get being what wild animals you manage to catch (humans are too easy)
an acceptable Monomancy?
First one to reach the finish point (or whoever manages to survive) wins.