How well can you estimate run duration?

How well can you estimate before a run how long it is going to take you? Can you tell somebody that you are going out for a run and what time you are going to get back? How close do you usually come to your estimate? Generally speaking, I can be pretty accurate with...

How do you do the “300” workout?

I wrote a month and a half ago about the “300” workout, which was a rite of passage for actors in the movie after they got in shape. The workout consists of the following exercises done back to back to back: 25x Pull-up + 50x Deadlift @ 135lbs + 50x...