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Matchup preview

Northern Illinois vs Iowa

Northern Illinois visit Iowa in Week 1. The model favors Iowa by 39.4. Win probability, the tale of the tape, and the all-time series, all from real data.

Win probability
1%
99%

Model win probability from SP+ ratings + home-field edge.

The read
Model analysis · September 2 · refreshed weekly

SP+ frames this as a mismatch across the board. Iowa rates 14.6 (22nd) against Northern Illinois at -17.2 (123rd), a gap that produces a projected Iowa margin of 34.2 points and a 98% model win probability. The unit ranks reinforce it: Iowa's offense sits 35th and its defense 16th, while Northern Illinois checks in 125th on offense and 106th on defense, offering no side of the ball to lean on.

The market lands slightly softer than the model. Consensus across two books sets Iowa -31.2 with a 44.5 total, implying a 97% Iowa win probability, three points shy of the model's projected margin. The ProphetX exchange is more extreme still, pricing Iowa at -25000 (implied 100%) and Northern Illinois at +4900 (implied 2%), matching the model's tail rather than the market's 3%. Series history is thin but one-directional: Iowa leads 1-0, winning the last meeting 33-7 in 2018.

Season context separates the programs. Iowa projects to 7.6 wins with an 18% Playoff chance over 10,000 runs, though the market prices its title odds at just 0.7% against the model's 1%. Northern Illinois projects to 4.4 wins with 0% Playoff and title equity.

Every input points one way: model, market, and exchange all price Iowa as a near-lock, with only the margin in question.

Matchup odds
Consensus line · 3 books
Spread
IOWA -31.7
Total (O/U)
44.5
Favorite
IOWA
Moneyline win probability (implied from the spread)
Iowa
97%

Real consensus line across 3 sportsbooks. Spread and total are the current market number; the win probabilities are implied from the spread.

Matchup odds price history
The market to win this game · daily prices, colored by the favorite
Northern Illinois1%-2 ptsvsIowa99%+2 pts
0%25%50%75%100%Northern Illinois favoredIowa favoredAug 19Aug 24Aug 27Aug 30Sep 2Sep 5Sep 6

Real daily prices from the market to win this game, shown as Northern Illinois's win price; Iowa's is 100 minus it (the same market's other side). Above the 50% line Northern Illinois is favored, below it Iowa is, and each candle takes the favored team's color. Kalshi shows open-high-low-close candles (filled body closed up, hollow closed down). As of Sep 23.

Tale of the tape
Percentile vs FBS · 2025 stats, 2026 SP+
#130SP+SP+: Bill Connelly's tempo- and opponent-adjusted efficiency rating, expressed in points above average.#18
#122FPIFPI: ESPN's Football Power Index, an overall measure of team strength.#18
1233EloElo: a rating that rises or falls after each game based on the result and the quality of the opponent.1937
-Title oddsDe-vigged consensus probability to win the national title, averaged across the prediction markets we track.0.8%
Northern IllinoisIowasolid = better, faded = trailing
What these metrics mean
SP+. SP+: Bill Connelly's tempo- and opponent-adjusted efficiency rating, expressed in points above average.
FPI. FPI: ESPN's Football Power Index, an overall measure of team strength.
Elo. Elo: a rating that rises or falls after each game based on the result and the quality of the opponent.
Title odds. De-vigged consensus probability to win the national title, averaged across the prediction markets we track.
Off PPA. PPA (Predicted Points Added): the average point value each play adds. Higher is better for offense, lower for defense.
Success. Success rate: the share of plays that stay on schedule (roughly 50% of needed yards on 1st down, 70% on 2nd, 100% on 3rd/4th). Higher is better.
Explosive. Explosiveness: the average value of a team's successful plays, i.e. how big its good plays are when they hit.
Yards/game. Total yards gained per game.
Success allowed. How often the defense allows an on-schedule play (enough yards for the down). Lower is better.
Havoc. Havoc rate: the share of plays where the defense makes a tackle for loss, forced fumble, interception, or pass breakup.
Yards allowed. Total yards allowed per game. Lower is better.
Efficiency profile
Percentile vs FBS · 2025
Recent series
Iowa lead 1-0
20182018
Head to head
Every meeting in our records
2018
33-7
Iowa
at Iowa
More Week 1 matchups
Model previews for the rest of the slate
FAQ

Frequently asked questions

How do I trade the Northern Illinois vs Iowa game?

Kalshi lists winner markets for college football games. Sign up with code FADE (trade $25, get up to $500), open the Northern Illinois vs Iowa market when it posts, and buy YES on your side; the price in cents equals the market's implied win probability. You can sell before kickoff or settlement at the current price.

When do Northern Illinois and Iowa play?

Week 1 of 2026, on Sep 5, 2026 at Iowa.

Who is favored?

The model projects Iowa by 39.4 (99% win probability), from SP+ ratings.

What is the all-time series?

Iowa lead 1-0 over the meetings in our records.

Full schedule → · Both teams' playoff odds, from 10,000 simulations →

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