EDWARD CLARISS was JAY GARRICK'S chemistry professor at MIDWESTERN UNIVERSITY. Clariss somehow managed to replicate the hard water formula that gave Jay his super speed. For a brief time afterward, Clariss took the identity of "THE RIVAL," a sort of REVERSE-FLASH, hell-bent on destroying the Golden Age Flash. The formula eventually wore off, and Jay was able to subdue Rival. Some months later, Clariss's powers returned, and he broke out of prison. Jay gave chase, but Rival ran so fast he ran himself out of existence, lost to the SPEED FORCE.
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