i had a little time after work for a short run, so i ran my little heart out. i tried for negative splits on this one, but missed them by a few seconds each time. it didn't help that i was starting to have GI issues toward the end. in fact, the "issues" got so bad that i had to stop short and walk in for fear of losing it code brown style. ugh! i'm still happy overall with my workout. i sweat plenty. 82% relative humidity helps with that.