I rechecked the scorecard for cosky and vonner to make sure I didn't mess up. I didn't.
The scorecars says that Cosky & Voner has K/J as their favorite & M/M.
Here is the breakdown:
First Place scoring (Kris/Jon) - 500 points
Favorite bonus - 500 points
Surivial scoring - 0 points because M/M was eliminated.
FF scoring - N/A
Yield scoring - N/A
100% points bonus - 0 because 0 was scored in the survival scoring
Total Score : 1000 points
Therefore, there are no mistakes here. Sorry Vonner and cosky.