I saw that "live on TV" back in the 70's. Fraziers body fat was about 1 percent if I remember correctly. He went straight to the bottom like a submarine due to ballast problems.
Very bad swimmer, but has anyone heard him sing? If not, I recommend you do not listen to him, it will destroy your sense of pitch forever!
I did read something about his left arm being injured and how he couldnt fully extend it or something like that and that it ended up at the perfect angle to throw a left hook.
They cut out some stuff. Frazier had a panic attack at one point in the pool. I saw this event. I think there were 8 events and the athletes could compete in 6. Why Frazier picked swimming is beyond me. Frazier also embarrassed himself on the bar bell lift. Cyclists and regular Joes beat him out. Frazier did not heave the entry-level weight. Although this was not a serious sporting event, boxing ended up taking one on the chin.
Farm - I saw Joe a few times on the tv and thought he was okay with the help of the Knockouts. Remember the leisure suits back then....whew!