Purdue vs. Indiana Prediction, Odds & Pick
Prediction, odds and the model's read
Our model's read
Scouting report
2026 projection · last season, roster and staff
Where Purdue gets at Indiana: 66th at hitting chunk plays, against a unit 111th at keeping everything in front of them. Where Indiana gets at Purdue: 12th on first and second down, against a unit 132nd on early downs defensively. Indiana is also 8th at staying on schedule through the air, against a unit 120th.
How
PURattacks
IU
- 1
Take shots
hitting chunk plays · projected
PUR#66 of 138IU#111 of 138
HowIUattacksPUR
- 1
Win first and second down
first and second down · projected
IU#12 of 138PUR#132 of 138 - 2
Stay on schedule through the air
staying on schedule through the air · projected
IU#8 of 138PUR#120 of 138 - 3
Lean on the run
moving the ball on the ground · projected
IU#15 of 138PUR#125 of 138
The two teams
Purdue
Purdue is in year 2 under Barry Odom, whose offenses have been balanced. The way in is 132nd on early downs defensively, and they are 125th at shutting down the ground game.
On fourth down he goes for it less often than his peers do from the same spots (−3.9%). Against what the expected-points model recommends he is −40.2% — the profession as a whole is negative on this.
Purdue has not played an FBS opponent yet, so this is the projection: last season regressed toward the mean, plus returning production, recruiting, talent and whether the staff is the same one.
Projected soft spots
- Defensefirst and second down#132projected
- Defensemoving the ball on the ground#125projected
- Defensestaying on schedule through the air#120projected
Indiana
Indiana is in year 3 under Curt Cignetti, whose offenses have been balanced. The strengths are defensive, led by 2nd at stuffing runs at the line. The way in is 133rd at hitting chunk plays, and they are 111th at keeping everything in front of them.
On fourth down he goes for it about as often as his peers do from the same spots (+0.4%). Against what the expected-points model recommends he is −28.9% — the profession as a whole is negative on this.
Indiana has played 1 game against an average slate, adjusted for here. That football carries about 0% of what is below; the rest is still the preseason projection.
Projected strengths
- Defensegetting stopped at the line#2projected
- Defenserunning it#4projected
- Defensesacks and tackles for loss#4projected
Projected soft spots
- Offensehitting chunk plays#133projected
- Defensehitting chunk plays#111projected
Ranks are national. Nothing here is last season's number — carrying one forward is measurably worse than saying nothing — and in-season figures are adjusted for who was actually played. This describes the matchup; it is not a prediction and not a pick.
Head coaches only — there is no free feed for coordinators, so on a program where the head coach does not call the offense this describes the staff he hired. Play-calling identity is a style, not a grade: throwing more than the situations warrant is not better than throwing less than they warrant.
Model prediction
how the number is builtOur model simulates the game drive by drive from each side's opponent-adjusted efficiency (IU Elo 2113, PUR Elo 1321 for reference), with home-field advantage. That projects IU -28.9 (98% to win), essentially in line with the market.
Why that percentage is worth reading: across 604 graded in-season games, the calls this model put near 58% came in at 58.2%. The full calibration table is published, bin by bin. Early in the season the cold-start path runs instead and calibrates less well (Brier 0.2028 against 0.1889).
Model as of Sep 1 · through week 1 · drive simulation
Where the game is won
2026 national rank · right is better
offensethe defense it faces
Moving the ball
PUR60th15thIUIU11th113thPURThrough the air
PUR12th16thIUIU78th93rdPUROn the ground
PUR81st31stIUIU33rd77thPURStaying on the field
PUR26th33rdIUIU9th84thPURTaking care of it
PUR1st75thIUIU21st107thPUR
Each bar runs from last in the country on the left to 1st on the right. The filled span is the gap between the offense and the defense it faces.
Season form — 2026
nationally rankedThe matchup, in context
series history + adjusted profilesPurdue leads 75–44–6 · Indiana has won 2 straight · 50% have been one-possession games
| PUR | IU | |
|---|---|---|
| -1.8 (#78) | CORE overall | +20.3 (#11) |
| -1 / +1 | offense / defense | +13 / -7 |
Bold is the side ahead. CORE strips the situation from every play and solves the schedule out across the league, so these compare two teams that never met.
Key matchups
The analyst read: each team's offense splits crossed against the opponent's defense, with the edges called out.
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FAQ
Who will win Purdue vs. Indiana?
Gridpex's model favors Indiana with a 98% win probability.
What's the predicted spread for Purdue vs. Indiana?
The model projects Indiana by 28.9.
What time is Purdue vs. Indiana and what channel is it on?
Time TBD, at Memorial Stadium (Bloomington, IN).
Where this number comes from. Every projection on this page is produced by the same model, run before kickoff on opponent-adjusted efficiency, power ratings and situational data — walk-forward validated on eleven seasons and never adjusted after the fact. How the model works →