By champion athletes do you mean boxing or weight lifting? Because that's two totally different veins of strength, though both of which would barely put you into Tier 2.

20x the running speed of a normal human is only 160mph. Again, within the range of Tier 2.

So combine all these abilities with this character and I see this as an upper middle Tier 2 character.

I say that, cause you forgot to give him a tier, or accurate numerical values.

If this is how able he is, I think he'd be acceptable.