Zooming ZombieFlash is the fastest man alive.
If he became a carrier for the altered Anti-Life Equation, the world would be lost in moments. He could probably power a major city for months if you made a treadmill that could handle those kinds of speeds. He not only can run at the speed of sound but, if pushed, can run faster than the speed of light (yeah, Einstein is rolling in his grave, but just bear with us).Flash's speed was a huge threat during DC Comics DCeased.