The Flash has many villains who are just as fast as him, with the chief among these being Reverse-Flash. Usually wearing a costume that inverts the Scarlet Speedster's, this evil runner has a mantle and legacy of his own. Several versions of The Flash (and his evil counterparts) appeared in The Flash movie, showcasing the Speed Force's many unique gifts. The various villains who've used the moniker or ones similar to it also exhibit powers of their own.
Source：https://www.cbr.com/flash-reverse-flash-differences-powers-dc-comics/
