College Football Stat Leaders
Predicted points added allowed per defensive play.
Seasons Covered
2003-2025
Current Leader
Iowa (-0.042)
Best Season
Michigan 2004 (-0.146)
Scope
Big Ten • 2008
Crawl sibling stat pages without leaving the shared leaderboard template.
Route-specific context pulled from the current leaderboard, winner trend, and historical baseline.
Defensive PPA is a prevention metric, so lower numbers are better because elite defenses consistently erase scoring value and force opponents into less efficient possessions. On this 2008 leaderboard, the visible range runs -0.042 to -0.006, with Iowa setting the pace.
Big Ten teams have claimed 100% of the yearly titles in this filtered dataset, and Ohio State is the latest winner at -0.014.
The gap from No. 1 Iowa to No. 5 Purdue is 0.036, which shows how tightly packed the top of this leaderboard is.
The yearly winning mark improved from -0.010 in 2024 to -0.014 in 2025, a swing of 0.003. Iowa's current mark of -0.042 sits above the all-time average leader benchmark of 0.011 held by Ohio State.
Top 11 rows for the current route scope.
| 1 | Iowa | Big Ten Conference | 2008 | -0.042 |
| 2 | Penn State | Big Ten Conference | 2008 | -0.009 |
| 3 | Northwestern | Big Ten Conference | 2008 | -0.009 |
| 4 | Michigan State | Big Ten Conference | 2008 | -0.007 |
| 5 | Purdue | Big Ten Conference | 2008 | -0.006 |
| 6 | Wisconsin | Big Ten Conference | 2008 | -0.004 |
| 7 | Michigan | Big Ten Conference | 2008 | 0.001 |
| 8 | Illinois | Big Ten Conference | 2008 | 0.007 |
| 9 | Ohio State | Big Ten Conference | 2008 | 0.011 |
| 10 | Minnesota | Big Ten Conference | 2008 | 0.073 |
| 11 | Indiana | Big Ten Conference | 2008 | 0.111 |
Yearly winning values for the current filter scope.
| Season | Team | Conference | Value |
|---|---|---|---|
| 2025 | Ohio State | Big Ten Conference | -0.014 |
| 2024 | Ohio State | Big Ten Conference | -0.010 |
| 2023 | Penn State | Big Ten Conference | -0.014 |
| 2022 | Iowa | Big Ten Conference | -0.043 |
| 2021 | Wisconsin | Big Ten Conference | -0.011 |
| 2020 | Wisconsin | Big Ten Conference | 0.016 |
| 2019 | Ohio State | Big Ten Conference | -0.011 |
| 2018 | Michigan | Big Ten Conference | 0.004 |
| 2017 | Wisconsin | Big Ten Conference | -0.040 |
| 2016 | Ohio State | Big Ten Conference | -0.051 |
| 2015 | Northwestern | Big Ten Conference | -0.011 |
| 2014 | Penn State | Big Ten Conference | -0.045 |
| 2013 | Michigan State | Big Ten Conference | -0.057 |
| 2012 | Michigan State | Big Ten Conference | -0.080 |
| 2011 | Michigan State | Big Ten Conference | -0.050 |
| 2010 | Ohio State | Big Ten Conference | -0.041 |
| 2009 | Ohio State | Big Ten Conference | -0.037 |
| 2008 | Iowa | Big Ten Conference | -0.042 |
| 2007 | Ohio State | Big Ten Conference | -0.059 |
| 2006 | Wisconsin | Big Ten Conference | -0.095 |
| 2005 | Ohio State | Big Ten Conference | 0.011 |
| 2004 | Michigan | Big Ten Conference | -0.146 |
| 2003 | Ohio State | Big Ten Conference | -0.143 |
Average across seasons for each team in the current filter scope.
| Rank | Team | Seasons | Average | Best Season |
|---|---|---|---|---|
| 1 | Ohio State | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.011 | 2003 (-0.143) |
| 2 | Iowa | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.026 | 2004 (-0.134) |
| 3 | Penn State | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.030 | 2014 (-0.045) |
| 4 | Michigan | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.031 | 2004 (-0.146) |
| 5 | Wisconsin | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.034 | 2006 (-0.095) |
| 6 | Michigan State | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.068 | 2012 (-0.080) |
| 7 | Oregon | 2025, 2024 | 0.076 | 2025 (0.041) |
| 8 | Northwestern | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.080 | 2004 (-0.047) |
| 9 | Washington | 2025, 2024 | 0.094 | 2025 (0.057) |
| 10 | Illinois | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.109 | 2022 (-0.038) |
| 11 | Minnesota | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.110 | 2003 (0.005) |
| 12 | Indiana | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.111 | 2004 (-0.021) |
| 13 | Purdue | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003 | 0.122 | 2003 (-0.057) |
| 14 | Nebraska | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011 | 0.128 | 2012 (-0.013) |
| 15 | Maryland | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 | 0.152 | 2022 (0.076) |
| 16 | USC | 2025, 2024 | 0.160 | 2025 (0.149) |
| 17 | Rutgers | 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 | 0.203 | 2023 (0.116) |
| 18 | UCLA | 2025, 2024 | 0.212 | 2024 (0.163) |
Iowa ranks first at -0.042 in 2008.
Ohio State owns the strongest all-time average at 0.011 across 23 tracked seasons in this conference scope.
Ohio State is the most recent yearly winner in this conference scope, so the route combines the current leaderboard with a recent trend line instead of showing only one season snapshot.