What four contest matches are on the Contest Upsets Mount Rushmore?

Board 8

Squall/Luigi and Magus/Knuckles are two examples of matches that were bigger shocks to us than the general public. I forget what Squall's prediction percentage was, but it was high enough to suggest he wasn't that far behind Luigi.

Knux's prediction percentage was around 35% against Magus. An upset, to be sure, but the disparity was much higher on B8. Sub-Zero was around 20% against Chief.
https://imgur.com/WqDcNNq
https://imgur.com/89Z5jrB