Purdue · Week 4 analysis

Where the team stands

Purdue ranks No. 112 in the reconstructed EP field, with a rating of -8.85 points against the average FBS opponent.

The previous snapshot ranked it No. 104; this update moves it -8 places and -3.27 rating points.

The rating snapshot includes 4 eligible games, with an eligible-results record of 1–3. The 24-hour kickoff embargo is applied consistently in historical forecast snapshots.

What enters this model

Opponent-adjusted current margin: -3.977. Prior-season margin: -0.069.

Opponent-adjusted first-down rate: -0.0080; EPA/play net: +0.0901; success-rate net: +0.0145; explosiveness net: +0.1211. These are adjusted net signals, not raw offensive rates.

EP inputs cover 1 eligible games. Excluded games contribute no fabricated EP observation. Opponent results can move a rating even during a bye.

The result and the reconstructed expectation

Purdue lost to Notre Dame by 39 points. The pre-result reconstruction projected a margin of -18.18; the result was -20.82 points relative to that expectation.

This is a newly reconstructed forecast under the frozen EP model. It is not represented as a prediction published before the game, and it does not replace the original published grade.

Next scheduled test

The next scheduled opponent at this snapshot is Illinois on 2026-10-03. That fixture is schedule information; its later outcome is not used in this report.

Offense: production and workload

Total yards: 218 versus 444; Net passing yards: 178 versus 267; Rushing yards: 40 versus 177; First downs: 16 versus 19

Completions–attempts: 25-37 versus 16-26; Rush attempts: 31 versus 32; Yards per pass: 4.8 versus 10.3; Yards per rush: 1.3 versus 5.5

Read production alongside workload: more attempts can raise a yardage total without raising efficiency. The model uses opponent-adjusted rate signals, not this box score alone.

Defense and possession

The opponent scored 49 points and recorded 444 total yards. This describes the conceded production; it does not identify a particular player or coverage as its cause.

Recorded sacks: 0 versus 6; Tackles for loss: 1 versus 9; Third downs: 8-18 versus 3-8; Fourth downs: 0-2 versus 1-1

Turnovers: 1 versus 1; Fumbles lost: 1 versus 0; Interceptions thrown: 0 versus 1; Penalties–yards: 6-46 versus 1-15; Possession time: 35:16 versus 24:44

The season outlook at this snapshot

The recorded regular-season record is 1–3. The expected final record is 2.8–9.2 over 12 scheduled games.

Expected wins add recorded results to the estimated win probabilities of remaining games. They are not a list of certain winners. Probabilities use a symmetric approximation from historical development residuals; independent calibration has not been established.

The comparison around the ranking

Nearby in this same snapshot: No. 111 Middle Tennessee (-7.88); No. 113 Marshall (-8.99).

PSR compares predictive strength rather than sorting teams by wins. A team can win and move down, or lose and move up, as its performance and opponents change the adjusted evidence.

How to read this assessment

This is a fresh assessment under the frozen EP model, using this period's eligible inputs. Earlier published releases remain preserved separately; the reconstructed archive is not presented as a prediction published before those games.

Scoring margin, prior-season margin, first-down efficiency, EPA per play, success rate and explosiveness contribute together. Correlated signals should not be interpreted as independent proof of an advantage, and a model disagreement with a betting line is not proof of profit.