You are not correct on all counts.
This is what i know is actually relevant:

25 - stars in hand --- Base Victory reward
1 --- Points per defeated opponent acording to the exact winnings table.
2 --- Points for pills remaining after KO OR life greater than 12
-2 --- Points per elo STAFF banned card.

This is all listed in the rules under tornaments

Your chart's totally wrong. Well, not totally. But so wrong as to be useless to anyone actually trying to figure out DT scoring. Here's correct information:

Outcome:
Winning match: 25 - (stars in hand + (Staff Banned Cards * 2)); the penalties only apply when you WIN the game.
Draw: 4 points
Loss: 3 points

Bonuses:
KO with any number of pills remaining: +2 points; OR
Win with more than 12 life: + 2 points

Note that the bonus is either/or. You don't get both. If you KO someone with 14 life remaining . . . it's only +2 points.

Combat:
Points are variable depending on the card matchups. Low star cards earn extra points for beating high star cards. High star cards get relatively few points for beating lower star cards. Consult the winning tables for details: http://www.urban-rivals.com/game/rules.php?show=table

FiF has it right. Do you get more points winning with low stars vs high stars?

Yes. Defeating a 4* or 5* card using a 2* card, like Prince Jr or Arkn, gets you 5 points. In contrast, defeating a 5* card with another 5* card gets you only 3 points. And defeating a 2* card with a 5* card? Only a single point. It's all on the table that was linked earlier.

Thank FiF hence why the tiny cuts deck works well.

So people are getting 400+ points in a round by making decks full of 2* cards and winning? I was wondering how I was seeing such high numbers all the time when I get around 20 points a win, which would mean 20 wins or 3 minutes a match, and that just doesn't happen.

Zyl: Actually, that's exactly what happens. Less than 20 matches during the DT and you probably won't be able to reach the top 10 if playing in Type 2