Probetrics — Sports Analytics
College Football slate
at
Sat, Nov 28, 12:00 AM ET
Ryan Field
Northwestern Wildcats
1-0 · #44 Elo
Spread ILL -3.5Total 52.5Moneyline ILL -175 · NU +145

The read

On rating alone Illinois Fighting Illini are 4.8 points better (#26 vs #44 of 240), and NU add 0.0 for home field. The clearest mismatch is the rushing game: ILL rushing ranks #86, NU defends it at #107; the other way NU #58 into ILL's #50.

Who has the edge

Rating
Clear edge
ILL
ILL rated 4.8 points better on Elo (#44 vs #26).
Home & rest
Even
NU gets 0.0 points for home field.
Passing game
Slight edge
ILL
ILL passing ranks #21, NU defends it at #65; the other way NU #83 into ILL's #101.
context · not in the margin
Rushing game
Slight edge
ILL
ILL rushing ranks #86, NU defends it at #107; the other way NU #58 into ILL's #50.
context · not in the margin
Third down & red zone
Even
NU third-down conversion ranks #37, ILL defends it at #122; the other way ILL #43 into NU's #99.
context · not in the margin
Form (last 5)
Slight edge
ILL
NU +16.0 per game over the last five, ILL +19.0.
context · not in the margin
Market
Clear edge
ILL
Consensus has ILL by 3.5.
context · not in the margin

The margin, factor by factor

Illinois Fighting IlliniNorthwestern Wildcats
1691 Elo · #26
RatingThe Elo gap in points — the model's core read on who is better, before the situational pieces below.
ILL +4.8 pts
1604 Elo · #44
road
Home field
not priced
home
Rest
even
−3.2 pts vs NU D
Offense vs defenseEach offense's scoring rating against the other defense's — what drives the model total. Shown as an edge, though the winner call runs on Elo.
ILL +1.7 pts
−4.9 pts vs ILL D
W · +19.0
Form (last 5)Average margin over the last five games. Already inside the ratings — listed so you can see when recent form and the rating disagree.
ILL +1.5 pts
W · +16.0
+12.9
SP+ (last season)Bill Connelly's SP+ from last season, the prior the college model starts each season from.
ILL +7.1 pts
+5.8
ILL -3.5
MarketThe consensus spread, read as points. Compare with the model margin above it.
ILL +3.5 pts
NU +3.5

Bars are in points toward the favored side. Blue factors are inside the model's margin; grey ones are context it does not add on top (form and offense/defense are already in the ratings; injuries beyond the quarterback are not priced).

Dissect the matchup

CollegeFootballData, garbage time excluded · 2025 season (last season until three games are in)

Biggest mismatches

  • ILL rush success rate (#15) against a NU defense ranked #118 at stopping it
  • ILL defense (#5 pass explosiveness allowed) against a NU offense ranked #96
  • ILL pass success rate (#14) against a NU defense ranked #101 at stopping it
  • ILL completion % (#17) against a NU defense ranked #102 at stopping it
  • NU third-down conversion (#37) against a ILL defense ranked #122 at stopping it

A mismatch is a rank gap of at least a fifth of the league between an offense and the defense it faces on the same measure. Descriptive rows (pass rate, pace, direction) are shown for reading the game, not ranked. ▲▼ mark where the last three games sit clearly above or below the season number, in the direction that helps that side.

Illinois Fighting Illini offense vs Northwestern Wildcats defense

ranks of 135
ILL offNU defEdge
Identity
Pass rate / Pass rate faced48%46%·
Standard-down shareShare of plays on standard downs (staying ahead of the chains).71%72%·
Plays / game5854·
Possession / game30:5527:41·
Passing
Passing PPA / playPredicted points added per pass play (CFBD).+0.41#21+0.24#65ILL
Pass success rate48%#1444%#101ILL
Pass explosivenessPPA on successful pass plays — how big the wins are.1.57#551.36#6NU
Yards / pass attempt8.2#267.3#77ILL
Completion %67%#1764%#102ILL
Interception rate / Interceptions forced1.6%#273.7%#14·
Rushing
Rushing PPA / play+0.08#86+0.18#107·
Rush success rate48%#1547%#118ILL
Rush explosiveness0.80#1310.99#84NU
Line yards / rushYards credited to the offensive line (first 4 yards weighted). Defense column: allowed.3.04#523.16#112ILL
Stuff rate / Stuff rate forcedRushes stopped at or behind the line.19%#8015%#117ILL
Power successConversion rate on 3rd/4th and ≤2, or goal-to-go from the 2.73%#5771%#63·
Yards / rush3.9#984.3#72·
Situational
Standard-down PPA+0.14#52+0.11#77·
Passing-down PPAObvious passing situations (2nd & 8+, 3rd/4th & 5+).+0.37#43+0.32#82ILL
Third-down conversion42%#4342%#99ILL
Points / scoring opportunityPoints per drive that reaches the opponent's 40.4.21#293.37#41·
Havoc rate faced / Havoc rateTFLs, forced fumbles, interceptions and passes defensed per play.15.5%#7015.0%#83·
Turnovers / game / Takeaways / game0.85#111.54#36·

Northwestern Wildcats offense vs Illinois Fighting Illini defense

ranks of 135
NU offILL defEdge
Identity
Pass rate / Pass rate faced47%54%·
Standard-down shareShare of plays on standard downs (staying ahead of the chains).70%72%·
Plays / game6159·
Possession / game32:1929:05·
Passing
Passing PPA / playPredicted points added per pass play (CFBD).+0.21#83+0.32#101·
Pass success rate42%#6649%#132NU
Pass explosivenessPPA on successful pass plays — how big the wins are.1.50#961.35#5ILL
Yards / pass attempt6.4#1106.6#45ILL
Completion %59%#9664%#93·
Interception rate / Interceptions forced2.4%#661.4%#124NU
Rushing
Rushing PPA / play+0.14#58+0.07#50·
Rush success rate46%#4641%#53·
Rush explosiveness0.91#920.92#50ILL
Line yards / rushYards credited to the offensive line (first 4 yards weighted). Defense column: allowed.2.97#632.88#68·
Stuff rate / Stuff rate forcedRushes stopped at or behind the line.18%#4719%#70·
Power successConversion rate on 3rd/4th and ≤2, or goal-to-go from the 2.76%#4175%#97NU
Yards / rush4.7#454.0#51·
Situational
Standard-down PPA+0.08#86+0.12#87·
Passing-down PPAObvious passing situations (2nd & 8+, 3rd/4th & 5+).+0.31#65+0.39#112NU
Third-down conversion43%#3745%#122NU
Points / scoring opportunityPoints per drive that reaches the opponent's 40.3.21#1154.33#124·
Havoc rate faced / Havoc rateTFLs, forced fumbles, interceptions and passes defensed per play.16.7%#9415.3%#76·
Turnovers / game / Takeaways / game1.62#1101.23#76ILL

Season

ILLNU
1-0Record1-0
42.0Points for / game34.0
23.0Points against / game18.0
1-0 / 0-0Home / road1-0 / 0-0
0-1Against the spread1-0
1-0Over / underOvers–unders in this team's games. A tendency, not a lean.1-0
WLast 5W

Power ratings

ILLNU
1691Elo1604
#26 of 240Rank#44 of 240
+4.6Offense ratingPoints per game above league average scored, opponent-adjusted.+2.3
+7.2Defense ratingPoints per game below league average allowed, opponent-adjusted. Positive is good.+7.8
1396Strength of scheduleMean Elo of opponents faced this season.1482

Elo drives the winner call. Offense/defense ratings drive the total.

Advanced

ILLNU
+10.4SP+ (this season)Bill Connelly's SP+ rating, points above average.+5.1
0.210Offense PPA / playPredicted points added per play, garbage time excluded (CFBD).0.151
0.198Defense PPA / playPPA allowed per play — lower is better.0.171
48% / 45%Success rate (off / def)43% / 45%
1.17 / 1.19Explosiveness (off / def)1.18 / 1.15
704Talent composite247Sports team talent composite for the current roster.688
21%Returning production89%

Advanced stats are from 2025 until this season has about three games. Source: CollegeFootballData.

Head to head

2025NU 13 at ILL 20ILL · push
2024ILL 38 vs NU 28ILL · ILL covered
2023NU 45 at ILL 43NU · NU covered

How the margin was built

Rating gap
ILL +4.8 pts
Home field
NU +— pts
Rest
Even
Weather / roof
— pts on the total
Model margin
Model total

Market

Spread
ILL -3.5
Total
52.5
Moneyline
ILL -175 · NU +145

Per-book prices appear once the multi-book feed has this game (about a week out).

Informational only. Winner probabilities are backtested and calibrated; spread and total calls are tracked leans. 21+, 1-800-GAMBLER.