Running Fast

A common scene in the comics is showing fast characters "sprinting" (or pushing their flight/swimming speeds) to get outrace a sports car, missile, torpedo, what have you. Some supers systems have mechanics for this sort of "pushing" of speed, but I've never been satisfied with them because they always feel more simplistic than simulation - short doublings of speed, or increasing speed by 10 "points" worth of the movement power. While I'm all for simulation I kept wondering if there was a better way.

( Truly geeky super speed math behind cut )