To look back at the tragedy of the Cornhuskers, we will primarily be using a metric known as “post game win probability” (PGWP). This metric comes from
CollegeFootballData.com, and is defined as follows:
“Post game win probability looks at advanced metrics like success rates, PPA, and scoring opportunities and assesses the probability of each team winning should the game be played again with equivalent stats. In other words, if you take all of the plays in a game and shuffle them into a random order, how often would each team be expected to win?”
Things like penalties and turnovers are not included in the metric due to the noise associated with each variable. PGWP is just one way to observe a game and get an understanding of which team played well enough to win, regardless of the scoreboard.