@Anonym to be fair, Saitama WAS pushed to his limits. Like, ONCE in the main story. Which caused his power to skyrocket, thereby showing what his actual power was. Just a symantics point, because as I mentioned before, we don't know what it would take to hurt either of them yet. For damage output, we have an idea about what Saitama can do, but we don't really know what Ketal can do damage wise. As for defense, we don't know for either of them.