* Lowness of resting pulse rate
* VO2max level
* Speed to run 100m, 800m, 1600m, marathon, 100 miles, 1000 miles
* same with biking, swimming, and mountain climbing
* squat weight limit, deadlift weight limit
* total consecutive reps of sit-ups, 20lbs bicep curl, 40lbs
What’s interesting is the distance between male and female athletic performance, across the board, grows inversely to the duration of continuous effort. For a while the fastest 100 miler in the world, by a significant margin, was female around age 40.