As far as I know, Iris has never gained the Flash’s speed. He did give her an outfit in the Flash#22 of the New 52, but as far as I know, it only helped her travel at super speeds without blowing up, but Flash did the running. If she did gain super speed, then this match could go the other way. As it stands, Son Para would still have the edge in a fight with his very mild super strength. Son Para wins.