It comes down to the 'general physical abilities' of either sex.
As it happens, the mechanics and finer points of luging were explained to me on Friday. Body weight is an important factor in controling a sled in that the rider moves their wieght around to help control, but steering is done via levers which are on the front of the sled which the rider 'pulls against' with the tops of their feet.
If, 'who competes against who' was based soley on size and weight, the male would win virtually every time. Not unlike my work, which is very physical. I am only 5'6"-125 lb. on a good day!

Over the years, several women have applied to work in my industry, floor covering. Education aside, we go into the warehouse, I point to a roll of carpet, or linoleum, or pallet of ceramic tile, point to a set of stairs, and tell them " we will carry this up those stairs. You pick up one end, I will take the other. Rare is it that one can do it. Those that could, were much bigger than me, but didn't have the stamina to stay at the job for very long. Personally, after 34 years in the business,
I do not know one female Journeyman Floorcovering Mechanic.