Well… That was fun. Remember that all advanced stats models include adjustments for garbage time, which is defined differently in each model but basically means being up by enough that both teams will change the way they’re playing; by any definition, Notre Dame reached garbage time before the half against Navy. What the Irish did up to that point, as Murtaugh highlighted in the game review post, are the kinds of things that impresses statistical models:

The Middies’ first and last drives of the first half showed promise but what happened in between, featuring 18 plays for 31 yards with 2 fumbles and a turnover on downs, absolutely buried them when Notre Dame scored touchdowns on 3 of 6 offensive snaps to build an early lead.

Recapping the methodology again: These aren’t actual SP+ win probabilities, as SP+ creator Bill Connelly doesn’t publish those regularly after his preseason previews. We used a slightly tweaked version of the formula that the Reddit guy who did these last year reverse-engineered to get close to published probabilities. That formula does some probability magic on the differential in SP+ rating for the two teams (with a bump for home field), and voilà. The FPI win probabilities are updated weekly by ESPN, so those are the real deal.

Post-Week 12 Update – SP+ Matrix

As you move down each column, you find the probability of Notre Dame owning that many wins at that point of the schedule. In the first row, you can see that the probability of owning 0 wins through week 1 is 0% and one win is 100%, since we already won. Same for the New Mexico row, and so on. In the last row, we’re tracking how much the probability of each win total has changed from the previous week. This is largely a function of our own outcomes, the quality of play that led to those outcomes, and SP+’s changing perceptions of our opponents.

The 73.7% figure at the end of the Stanford row reflects our probability of having 10 wins through 12 games – in other words, that’s our probability of winning out per SP+. That’s up a whopping 32 points from last week, as SP+ regarded Navy relatively highly and had it as a moderately difficult game (as did Vegas and almost every other statistical model). Accordingly, the odds of 9-3 and 8-4 dropped precipitously.

Post-Week 12 Update – FPI

FPI was much more bullish about Notre Dame’s chances against Navy, so winning the game did less to move the needle on the chances of going 10-2. However, it still did go up substantially, by 16 points here. Note also that for the first time this season, SP+ and FPI are basically in step about how we should expect things to fall out from here. Not terribly surprising with 10 of 12 data points in the books now, but still.

Week by Week Game Trends – SP+

Week by Week Game Trends – FPI

Closing Thoughts

Changing the title of this section from “Other Nuggets” as the “nuggets” are exceedingly slim pickings now with just two games left. The eye test over the last two games suggests Notre Dame is playing its most complete football of the year right now, and the advanced stats models back up that impression. Yes, Duke and Navy aren’t Georgia and Michigan. Nobody would claim that. But there’s no question that the team, and particularly the offense, and even more particularly the defense, all have a very different vibe right now. As noted Notre Dame fan Ryan Nanni (where’s my sarcasm font?) said postgame…

Let’s hope, Ryan. Let’s hope.