David would not get a single point against Tezuka. Yamato wins easily.
Now, the part I was referencing, the bit about the Man who Flows like the River, http://www.mangahere.com/manga/new_p...nis/v04/c037//, explains that Yamato's true potential can't be gauged, even more stating that his actual stats are way above 2/2/2/2/2. It's the small text on the info part.
Yamato's stat is just an outright contradiction of logic if he played ANY game after he got to court 3.
For example we're shown court 3 playing court 4. If he played in a game there, we know he didn't use GUYU. Court 4 is presmably no worse than court 5 in raw stats, so whoever Yamato plays would grossly outclass him in stats. For the sake of simplicity let's say he played someone who is 3/3/3/3/3. So he'd beat someone who has 1 higher stat than him in every way, while using no offensive techniques, and yet whatever scouter power used to determine his power still reads 2/2/2/2/2? Either he has to display power above 2/2/2/2/2 to defeat someone that'd be at all a reasonable match for court 3, or he'd lose his match (except court 3 won 5-0).
I guess you can say maybe he never played a match on court 3 but then where did his stat come from if he never played a match?