Sunday, November 29, 2015

Weekly Playoff Probabilities - Week 13

Quick post this week on the account of travel.  Rankings:

Rank Team FPI Rank CHAMP Prob POFF Prob Change
1 Clemson 6 17.75% 74.30% -2.7%
2 Iowa 26 5.10% 65.95% 12.4%
3 Oklahoma 1 24.73% 52.58% 10.8%
4 Ohio State 3 17.73% 52.58% 28.7%
5 Alabama 2 15.83% 42.21% 6.2%
6 Michigan State 14 5.89% 36.21% 4.6%
7 North Carolina 15 4.18% 26.09% 7.5%
8 Notre Dame 9 1.57% 7.55% -22.2%
9 Oklahoma State 17 0.88% 7.55% -17.2%
10 Northwestern 53 0.15% 7.55% 2.8%
11 Texas Christian 7 1.80% 7.55% 3.5%
12 Florida State 10 1.57% 7.55% 3.5%
13 Baylor 4 2.28% 6.97% -25.4%
14 Stanford 11 0.70% 3.63% 0.8%
15 Florida 23 0.17% 1.71% -11.2%

1. Saying goodbye this week is one team: Michigan.  Thanks to a fairly "normal" final couple of weeks, we'll likely end up with 13-15 teams in the final ranking, which is more than I expected a couple of weeks ago.

2. As I said last week, it's unlikely that the Big Ten gets two teams in, but if someone's going to do it, it's them.  This weeks conference ratings reflect that:

Conference Exp Playoff Teams
Big 10 1.623
ACC 1.079
Big 12 0.747
SEC 0.439
Independent 0.076
Pac 12 0.036

3. Our New Champ Watch is on its last legs with Baylor and Oklahoma State both suffering losses that effectively eliminate them from contention.  Iowa now represents the best chance at crowning a new champion with a 13.3% chance between all of the remaining teams.

4. At this point, the simplicity of my model is catching up with it.  All the non-Stanford two-loss teams clearly have no shot against the top teams, but they're all sitting there with the default odds for a team in their bucket (except for the teams with a game remaining).  I'll talk about changes more next week (and next summer), but I'll likely add the following next year:

     A. Other ratings systems (S&P+, Sagarin)
     B. Better conference champ game odds throughout the season
     C. Some SOS rating (the Alabama-Iowa correction I mentioned earlier)
     D. Some conditional odds based on the number of 0, 1, and 2 loss teams (so a bunch of 10-2 teams with no chance don't show up at ~7%)


Week 14 Preview

Home Away Home Win Prob Playoff Teams Lost
Iowa Michigan State 36.35% 0.204
Clemson North Carolina 58.95% 0.175
Alabama Florida 77.28% 0.071
Stanford USC 47.67% 0.018
Baylor Texas 93.08% 0.005

Unsurprisingly, championship week gives us the two biggest games of the year concerning the playoff.  There isn't much else of note on Saturday, but those matchups should be more than enough to make up for the lack of depth.

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