Originally posted by horrorwolf
The problem is that the Flash is nowhere near Superman in Strength or Durability.... Thus the Kryptonite gloves.
Nor was he anywhere near Zum in strength or durability, or Mongul, and he handled both of them with the ease of a consummate professional.
Superman actually has chanced Flash before, in an effort to stop and question him. Flash outruns Superman, and then outruns his heat vision, and makes it clear that at any time he could steal the kinetic energy from his body and leave him way behind, if he didn't care about collateral damage.