Football Ratings

NCAA Division 1A Football

© Copyright 2004-2015, Paul Kislanko

Analysis	Breaks down the computer ranknigs listed on Kenneth Massey's College Football Ratings Comparison page as ranked ballots using a variety of vote-counting methods. Top 25 Borda Majority Consensus Pairwise Matrix Correlations Conference Ranks Weighted Violations Playoff Approval Playoff Watch List Opponents' Rank Distribution David Wilson's Rankings List describes the rating systems in terms of their attributes.
Commentary	The 2015 ~~FBS~~ D1A Schedule July 12, 2015: First, the Interconference Schedules Connecting the Blobs July 24, 2015: Conference Connectors Scheduled Round-Robins July 26, 2015: Connecting Groups Ratings Scope August 29, 2015: Changes for the 2015 season A better analytical tool August 30, 2015: Team results weighted by opponents' strength SOS Insight September 6, 2015: Characterizing schedules by opponents' ranks Teams to Watch November 6, 2015: Who's got the worst bad loss? Playoff Selection Report Card December 10,2015: The committee gets an A-minus D1 Post-Season December 27,2015: Interconference and playoff results
Reference	Standings Index to team and conference schedules Consolidated Schedules and Results This is a consolidated and indexed version of Dr. Peter Wolfe's schedules and scores pages. FBS FBS-BCS AQ conference teams FBS non-AQ conference teams D1 Football Championship Subdivision Division 2 Division 3 NAIA Scoreboards FBS FCS D2 D3 NAIA Interdivisional Results with scoring analysis Division 1 schedule by week Interconference results for FBS Conferences Division and Conference Affiliations For all teams, based upon Dr. Wolfe's NCAA and NAIA Divisional and Conference Affiliations page. College Football Data Warehouse Where to go when you get old enough that your memory fails or you're too young to remember what happened before you were born. Well, it was before it adopted advertising practices that even disrespectable websites gave up on long ago. You have to be desperate to use it now. cfbstats.com Splits and situational stats - inside box scores
Ratings	ISR Boyd Nation's Iterative Strength Rating ISOV Iterated Strength of Victory (ISR with SOV-based adjustments for each game) Normalized Scoring Stats Scoring data adjusted by opponents' strength Directed Games Graph Metrics Weighted Win Paths See the WWP definition The below are not "ratings" per se, but count and make visible all of the shortest "A beat B beat C beat ..." (A⇒) chains in the current games graph. Second Order Winning Percentage % of teams that the given team has a shorter or stronger A⇒... chain to other teams than the other way around. Weighted by the length and strength of the A⇒ paths to other teams.

Often people who are not familiar with the nature and limitations of statistical methods tend to expect too much of the rating system. Ratings provide merely a comparison of performances, no more and no less. The measurement of the performance of an individual is always made relative to the performance of his competitors and both the performance of the player and of his opponents are subject to much the same random fluctuations. The measurement of the rating of an individual might well be compared with the measurement of the position of a cork bobbing up and down on the surface of agitated water with a yard stick tied to a rope and which is swaying in the wind. Arpad Elo in Chess Life, 1962

In theory, there is no difference between theory and practice; In practice, there is. — Chuck Reid

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