One Punch Man has confirmed Saitama can time travel which might be the biggest advantage Saitama has over Dragon Ball's Goku.

As One-Punch Man explored in the second season, Saitama does not have a grasp on martial arts nor has a semblance of what they are in general. This gives Goku an immediate edge as his skills in combat ...

Obviously, you’d get carnage – pure and simple. The two characters would revel in the ultimate match up. As a Saiyan, Goku would be ready to to all-in for a fight, and he would only continue to sift ...