I am interested to see what kinds of hell people have gone through during the hardest "physical trial" of ones life.

This survey is not limited to one single event. You could use such things as basic training, a military training event or a season of a select sport.

If I understand your question, you mean the hardest physical exercise people might have gone through. right?

For me, the first day of bootcamp in AF was horrible. Although I was somewhat ready for that ( I am a former Karate Kai ) but it was beyond my abilities. It was quite bad.

first day in AF. terrible! i feel your pain phoenix!

500m monkey run followed by 500m leopard crawl follwed by a 4 mile TAB. Full kit including IW + 7 fully loaded mags. That was tough!! For a 16 y/o at the time anyway lol

My entire experience as guidon at bootcamp, but it was also majorly mental...

A few things that I have experienced in the Army have been rough, but nothing has been rougher for me than my season in College Waterpolo.

When I got out of the military in 2001, I was in damn good shape. I has ridding my bike 200-250 miles a week, playing beach volleyball every chance I could and swimming 3-5 times a week. Even in that shape, I boke down hard during the hell of the first couple of weeks training for water polo. I remember running, lifting weights and punnishment in the pool. Thw worst was doing "jugs". Jugs are done with a 5 gallon water container at the end of practice. You fill the thing up, flip it over and drain it as you tred water. NOT FUN!!! NOTHING has ever make my body hurt like that. I had to literally pull myself up stairs on the handrailing because my legs were destroyed.

OK not a physically trial but most painfully thing that ever happened to me was gettin a static shock off a f18, blown in the air from it. Its just the shock of it that scares you.
Physical trial prob when I was younger I blew out my knee and trying to get it back in shape again (played basketball). Wild frustrating.
Or its gotta be doing a 12 mile run, while been out the night before at a party having drunk nearly a bottle of jack getting home at 6 having to go running at 8. Even the muscles in the fingers hurt that day :P

I remember two very hard exercises from my army service, first was nearly 12 hours ski march with standard combat gear on and we had only one lunch break in the middle, that exercise surely introduced me to whole new levels of fatigue, thirst and hunger
Another one I recall was a battalion level attack run, that was three days of intense combat training with only few hours of sleep.

one summer i got in trouble and my dad made me rake the yard from 5-5 and he would spred the leaves out over the yard as soon as i got them raked. hole.

Being chased around an assault course with a gas mask on. If you pulled it away from your face to breathe you were send around again, also you had to finish the course in a set time. It felt that your heart and lungs were torn out through your throat.