Putting Up Numbers· college football

USC’s third-down conversion rate with Trent Mosley and without Trent Mosley

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Against what the season’s ratings expected, USC was 13.6 percentage points over with Trent Mosley and 9.5 percentage points under without Trent Mosley over its last 25 games, 6 games against 3. The plain averages are 56.2% and 34.6%, a difference of 21.6%. All 4 night games were with Trent Mosley. All 3 nonconference games were with Trent Mosley.

Trent Mosley, receiver: 512 receiving yards, 32 receptions and 6 receiving touchdowns in 6 of those 25 games.

3 games without Trent Mosley is still too small a sample for the statistics to say much, but maybe you can find something if you squint.

third-down conversion rate a game over expected

A +23.1% difference in third-down conversion rate over expected with Trent Mosley vs without Trent Mosley is unusual: shuffle which games were with Trent Mosley and it comes up 3 times in 100.

A +21.6% difference in third-down conversion rate with Trent Mosley vs without Trent Mosley is unusual: shuffle which games were with Trent Mosley and it comes up 3 times in 100.

The games

with Trent Mosleywithout Trent Mosley
USC’s games, last 25 games, each marked with Trent Mosley or without Trent Mosley
SideDateGameResult3rd downsExpected
Nov 23, 2024@UCLAW28.6%46.6%
Nov 30, 2024vsNotre DameL41.7%38.9%
Dec 27, 2024vsTexas A&M (neutral)W46.2%37.5%
Aug 30, 2025vsMissouri StateW85.7%47.1%
Sep 6, 2025vsGeorgia SouthernW55.6%56.7%
Sep 13, 2025@PurdueW30.8%48.0%
Sep 20, 2025vsMichigan StateW66.7%44.6%
Sep 27, 2025@IllinoisL57.1%48.0%
Oct 11, 2025vsMichiganW50.0%45.3%
Oct 18, 2025@Notre DameL42.9%41.8%
Nov 1, 2025@NebraskaW42.9%47.7%
Nov 7, 2025vsNorthwesternW54.5%48.1%
Nov 15, 2025vsIowaW50.0%41.5%
Nov 22, 2025@OregonL43.8%43.3%
Nov 29, 2025vsUCLAW66.7%51.6%
Dec 30, 2025vsTCU (neutral)L41.7%45.7%
Aug 29, 2026vsSan Jose StateW69.2%42.4%
Sep 4, 2026vsFresno StateW62.5%44.0%
Sep 12, 2026vsLouisianaW73.3%41.4%
Sep 19, 2026@RutgersW50.0%48.7%
Sep 26, 2026vsOregonL18.2%40.9%
Oct 3, 2026vsWashingtonW35.7%42.6%
Oct 10, 2026@Penn StateW45.5%36.3%
Oct 24, 2026@WisconsinL46.7%45.1%
Oct 31, 2026vsOhio StateW40.0%46.3%

Method

Read against .

  • Expected is an offense and a defense a team, fit over every 2026 game between two teams in the table with the game being read left out, plus 1.4% 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 40% 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.
  • Who played is read from the schools’ box scores’ participation lists for 8 of these 9 games; in the other game a player is counted as in it when the box score has a stat for him.
  • 16 games in 2024 and 2025 are neither with Trent Mosley nor without Trent Mosley: Trent Mosley had no game for the team those seasons, and sit out.