Dojo of Pain members Daniel Yi, Richard Rainey, PJ Martinez, Brian Savitch and Jeff King begin running at Hains Point.
Most joggers hit the pavement to get a little exercise and stay fit. And then there's the Dojo of Pain -- a group of hyper-competitive runners who meet regularly in D.C. to push each other to their physical limits. Kavitha Cardoza went to Hains Point to meet the members of the dojo, and sent back this audio postcard.
[Music: "Run" by Vampire Weekend from Contra (Bonus Mega Version)]