I was just thinking, "How is it possible for a baseball team to exist for 50 years and not throw a single no-hitter?", but apparently SD was the only team in the majors to have never thrown a no-no.
They never really had great pitching, I can't even name a great Padres pitcher other than Steve Garvey and Trevor Hoffman. To be fair though, it really is just a crap shoot too. A pitcher can throw a 3 hitter and pitch better than someone who threw a no hitter, sometimes a 7 hopper to short gets through.