Almost all our athletes can pull more than they push. We compare bench press RM to chinup RM and roughly predict maxes.
A male athlete who can bench 300 and weighed 200 would need to be able chin 45-55 lbs for 5 reps. ( thinking 255x5 equals a 300 bench)
All our elite females bench approximately bodyweight for a predicted 1 RM but, can all do loaded chinups.
All of my high schol boys are similar.
Here's Alex Carpenter with 45x5 and 4 year time lapse of my son Mark ( now 16)