I am 150 but I can do like 17 but that all I ever do to work out everyone morning and evening is pull up ands chin ups. 31 is like Amazing, at the x games the navy had a comp and like 24 won
ummm im 145 and i can do a frontflip off the gym bleachers does that count? always impresses the teacher when i do skiing shit off the bleachers in gym and i get A's. he tried to send me to the office though when i tried a backflip 540 and landed on the wrestling mats though. btw i can only do like 8 pull ups
weight doesnt matter in pull ups/chin ups/static hold, contrary to what almost everybody thinks. its muscle to weight ratio that matters. anyhow im 135lbs and could do 18 when I was working out, I'm at about 14 now.