AreWeThereYet
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Performance & Efficiency Index's
F+ = Average of FEI & S&P+
FEI - The Fremeau Efficiency Index is a college football rating system based on opponent-adjusted possession efficiency, representing the per possession scoring advantage a team would be expected to have on a neutral field against an average opponent.
The S&P+ Ratings are a college football ratings system derived from the play-by-play and drive data of all games. The components for S&P+ reflect opponent-adjusted components of the Five Factors of college football: efficiency, explosiveness, field position, finishing drives,and turnovers (informed marginally by sack rates).
Note F+ uses a recalculated S&P+ using the 2019 revised formulas (in parenthesis). The first S&P+ number is the old formulas which has been used for offensive defensive special teams numbers.
FEI
OFEI - Opponent-adjusted offense ratings
DFEI - Opponent-adjusted defense ratings
SFEI - Opponent-adjusted special teams ratings
S&P+
Off. S&P+ rating: A team's offense-specific S&P+ rating, presented in the form of an adjusted scoring average.
Def. S&P+ rating: A team's defense-specific S&P+ rating, presented in the form of an adjusted scoring average (and since this is defense, the lower the average, the better).
Special Teams S&P+ rating: This is an initial attempt to measure play-for-play special teams efficiency, weighted for overall importance.
Offensive S&P Breakdown
Iowa's rush S&P and SD(standard down) averages plummeted for 2017and 2018. This year much the same is expected. That may in part reflect what Kirk Ferentz is saying about the change in cut blocking rules affecting zone blocking. That being said the over all numbers tend to show that Iowa's running game was merely adequate to poor most years from 2009 onward, with 2016 being the best year during that span. The one outstanding year for Iowa's running game was with Shaun Greene in 2008 behind a very good run blocking line. 2005 & 2006 were decent years efficiency wise for the running game, 2016 had more explosiveness.
S&P ratings are based on per play measure of efficiency & explosiveness, that are then opponent adjusted. (There are also some situational numbers figured in)
F+ = Average of FEI & S&P+
FEI - The Fremeau Efficiency Index is a college football rating system based on opponent-adjusted possession efficiency, representing the per possession scoring advantage a team would be expected to have on a neutral field against an average opponent.
The S&P+ Ratings are a college football ratings system derived from the play-by-play and drive data of all games. The components for S&P+ reflect opponent-adjusted components of the Five Factors of college football: efficiency, explosiveness, field position, finishing drives,and turnovers (informed marginally by sack rates).
Code:
Year F+ FEI S&P+ Sagarin Massey
2019 19 20(20) 20 16 18
2018 20 16(12) 22 10 25
2017 31 16(14) 49 18 25
2016 37 44(38) 30 41 20
2015 38 31(34) 47 22 8
2014 63 61(63) 70 47 50
2013 29 35(31) 25 32 25
2012 65 79(70) 63 70 76
2011 47 44(35) 55 45 44
2010 18 17(18) 21 21 30
2009 10 24(08) 11 9 14
2008 13 17(13) 13 22 28
2007 66 69(65) 69 79 70
2006 47 {52} 41 51 56
2005 19 {13} 23 26 23
2004 12 13
2003 9 13
2002 8 6
2001 31 40
2000 76 72
1999 97 96FEI
OFEI - Opponent-adjusted offense ratings
DFEI - Opponent-adjusted defense ratings
SFEI - Opponent-adjusted special teams ratings
S&P+
Off. S&P+ rating: A team's offense-specific S&P+ rating, presented in the form of an adjusted scoring average.
Def. S&P+ rating: A team's defense-specific S&P+ rating, presented in the form of an adjusted scoring average (and since this is defense, the lower the average, the better).
Special Teams S&P+ rating: This is an initial attempt to measure play-for-play special teams efficiency, weighted for overall importance.
HTML:
Year OFEI S&Poff avg off
2019 70 71 71
2018 47 54 51
2017 45 70 58
2016 73 68 71
2015 61 63 62
2014 70 45 58
2013 78 58 68
2012 112 97 105
2011 32 36 34
2010 42 19 31
2009 86 72 79
2008 38 11 25
2007 99 82 91
2006 27 27
2005 13 13
Code:
Year DFEI S&Pdef avg def
2019 6 5 6
2018 7 18 13
2017 12 21 17
2016 21 18 13
2015 26 28 27
2014 50 48 49
2013 11 5 8
2012 43 37 40
2011 62 26 44
2010 11 30 21
2009 7 5 6
2008 14 4 9
2007 34 17 26
2006 35 35
2005 27 27
Code:
Year SFEI S&Pst avg st
2019 1 24 13
2018 16 44 30
2017 16 38 27
2016 7 60 34
2015 98 60 79
2014 77 114 96
2013 62 60 61
2012 49 45 47
2011 50 56 53
2010 33 34 34
2009 15 26 21
2008 32 29 31
2007 74 80 77
2006 63 63
2005Offensive S&P Breakdown
Code:
Year OFEI S&Poff RushS&P PassS&P SD PD
2019 70 71
2018 47 54 122 39 103 51
2017 45 70 90 32 72 37
2016 73 68 31 86 39 106
2015 61 63 47 57 96 16
2014 70 45 110 62 93 86
2013 78 58 76 66 67 104
2012 112 97 95 118 102 123
2011 32 36 55 55 49 61
2010 42 19 54 23 14 84
2009 86 72 103 41 75 54
2008 38 11 15 28 11 79
2007 99 82 85 115 85 118
2006 27 34 42 37 25
2005 13 33 40 26 34Iowa's rush S&P and SD(standard down) averages plummeted for 2017and 2018. This year much the same is expected. That may in part reflect what Kirk Ferentz is saying about the change in cut blocking rules affecting zone blocking. That being said the over all numbers tend to show that Iowa's running game was merely adequate to poor most years from 2009 onward, with 2016 being the best year during that span. The one outstanding year for Iowa's running game was with Shaun Greene in 2008 behind a very good run blocking line. 2005 & 2006 were decent years efficiency wise for the running game, 2016 had more explosiveness.
S&P ratings are based on per play measure of efficiency & explosiveness, that are then opponent adjusted. (There are also some situational numbers figured in)
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