Putting Up Numbers· college football

Indiana’s third-down conversion rate with Khobie Martin and without Khobie Martin

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Against what the season’s ratings expected, Indiana was 7.2 percentage points over with Khobie Martin and 1.7 percentage points under without Khobie Martin over its last 25 games, 15 games against 8. The plain averages are 56.3% and 41.4%, a difference of 14.9%. Both games after a bye were with Khobie Martin.

Khobie Martin, running back: 512 rushing yards, 81 carries and 1 reception in 12 of those 25 games.

third-down conversion rate a game over expected

A +8.9% difference in third-down conversion rate over expected with Khobie Martin vs without Khobie Martin is about what you’d expect.

A +14.9% difference in third-down conversion rate with Khobie Martin vs without Khobie Martin is about what you’d expect.

The games

with Khobie Martinwithout Khobie Martin
Indiana’s games, last 25 games, each marked with Khobie Martin or without Khobie Martin
SideDateGameResult3rd downsExpected
Aug 30, 2025vsOld DominionW58.8%48.6%
Sep 6, 2025vsKennesaw StateW55.6%52.0%
Sep 12, 2025vsIndiana StateW75.0%—
Sep 20, 2025vsIllinoisW72.7%51.3%
Sep 27, 2025@IowaW40.0%45.6%
Oct 11, 2025@OregonW35.7%47.8%
Oct 18, 2025vsMichigan StateW62.5%49.1%
Oct 25, 2025vsUCLAW75.0%54.8%
Nov 1, 2025@MarylandW61.5%53.6%
Nov 8, 2025@Penn StateW41.7%51.4%
Nov 15, 2025vsWisconsinW58.3%45.9%
Nov 28, 2025@PurdueW50.0%49.8%
Dec 6, 2025vsOhio State (neutral)W46.2%42.7%
Jan 1, 2026vsAlabama (neutral)W64.3%46.9%
Jan 9, 2026vsOregon (neutral)W78.6%44.7%
Jan 19, 2026vsMiami (FL) (neutral)W37.5%44.2%
Sep 5, 2026vsNorth TexasW55.6%39.1%
Sep 12, 2026vsHHowardW70.0%—
Sep 19, 2026vsWestern KentuckyW20.0%39.2%
Sep 25, 2026vsNorthwesternW60.0%37.6%
Oct 3, 2026@RutgersW50.0%41.2%
Oct 10, 2026@NebraskaW10.0%35.3%
Oct 17, 2026vsOhio StateL50.0%37.5%
Oct 24, 2026@MichiganW28.6%37.9%
Oct 31, 2026vsMinnesotaW15.4%36.5%

Method

Read against .

  • Expected is an offense and a defense a team, fit over every game of its season between two teams in the table with the game being read left out, plus 0.7% in 2025, plus 1.4% in 2026 for the home team (the edge the fit finds once strength is in), nothing at a neutral site.
  • Each expected number is then fit to the season’s games: a game bears out about 56% in 2025, 40% in 2026 of the difference the model predicts.
  • The shuffle keeps the season’s shape: the games are cut in two where one date leaves the least variance, each game is read against its stretch, and the sides are shuffled only inside each stretch.
  • Indiana State, Howard have no other game in the table, so those games have no expected number and sit out the second figure.
  • Who played is read from the schools’ box scores’ participation lists for 24 of these 25 games; in the other game a player is counted as in it when the box score has a stat for him.