Sat, Nov 20 2021
·
Week 12
·
Neutral Site
·
🏟 Wrigley Field
Chicago, IL
·
Turf
Purdue✈ 467 mi-1 hr TZ
Northwestern✈ 557 miSame TZ
Matchup Prediction
Purdue
has the edge in this matchup
Both Momentum Control (CSS) and Game Control metrics favor
Purdue entering this game.
Momentum Control
73.7%
Purdue wins
Solid
Game Control
64.9%
Purdue wins
Lean
Vegas Spread
Purdue -11
O/U 47.5
teamrankings
Advanced Stats
All 4 factors agree → Purdue
· 83.1% ATS historically when all four align
↓ See full breakdown
Purdue 2021 Schedule
Purdue's 2021 Schedule
| Date | Matchup | Spread | Total | Result | O/U | Cover |
|---|---|---|---|---|---|---|
| Sat 9/4 | Purdue vs Oregon State | -7.0W30–21 | 67.0 | W30–21 | U | Y |
| Sat 9/11 | Purdue at UConn | -35.0W49–0 | 56.5 | W49–0 | U | Y |
| Sat 9/18 | Purdue at Notre Dame | +7.5L13–27 | 58.0 | L13–27 | U | N |
| Sat 9/25 | Purdue vs Illinois | -10.5W13–9 | 53.5 | W13–9 | U | N |
| Sat 10/2 | Purdue vs Minnesota | -2.0L13–20 | 46.0 | L13–20 | U | N |
| — Bye Week — | ||||||
| Sat 10/16 | Purdue at Iowa | +11.0W24–7 | 42.5 | W24–7 | U | Y |
| Sat 10/23 | Purdue vs Wisconsin | +3.5L13–30 | 41.0 | L13–30 | O | N |
| Sat 10/30 | Purdue at Nebraska | +7.5W28–23 | 54.0 | W28–23 | U | Y |
| Sat 11/6 | Purdue vs Michigan State | +2.5W40–29 | 53.0 | W40–29 | O | Y |
| Sat 11/13 | Purdue at Ohio State | +19.0L31–59 | 65.5 | L31–59 | O | N |
| Sat 11/20 | Purdue vs Northwestern | -11.0W32–14 | 47.5 | W32–14 | U | Y |
| Sat 11/27 | Purdue vs Indiana | -18.0W44–7 | 50.5 | W44–7 | O | Y |
| Thu 12/30 | Purdue vs Tennessee | +8.0W48–45 | 67.0 | W48–45 | O | Y |
Northwestern 2021 Schedule
Northwestern's 2021 Schedule
| Date | Matchup | Spread | Total | Result | O/U | Cover |
|---|---|---|---|---|---|---|
| Fri 9/3 | Northwestern vs Michigan State | -3.0L21–38 | 45.5 | L21–38 | O | N |
| Sat 9/11 | Northwestern vs Indiana State | -28.5W24–6 | 46.0 | W24–6 | U | N |
| Sat 9/18 | Northwestern at Duke | -2.5L23–30 | 50.0 | L23–30 | O | N |
| Sat 9/25 | Northwestern vs Ohio | -13.5W35–6 | 47.5 | W35–6 | U | Y |
| Sat 10/2 | Northwestern at Nebraska | +11.0L7–56 | 51.5 | L7–56 | O | N |
| — Bye Week — | ||||||
| Sat 10/16 | Northwestern vs Rutgers | +2.5W21–7 | 45.0 | W21–7 | U | Y |
| Sat 10/23 | Northwestern at Michigan | +23.5L7–33 | 51.5 | L7–33 | U | N |
| Sat 10/30 | Northwestern vs Minnesota | +7.5L14–41 | 43.5 | L14–41 | O | N |
| Sat 11/6 | Northwestern vs Iowa | +11.5L12–17 | 40.5 | L12–17 | U | Y |
| Sat 11/13 | Northwestern at Wisconsin | +26.0L7–35 | 41.5 | L7–35 | O | N |
| Sat 11/20 | Northwestern vs Purdue | +11.0L14–32 | 47.5 | L14–32 | U | N |
| Sat 11/27 | Northwestern at Illinois | +7.0L14–47 | 45.0 | L14–47 | O | N |
Advanced Stats
Advanced Analytics Matchup
Matchup-adjusted (offense vs opponent defense) ·
2021 season
Agreement Signals — When All Metrics Agree
Elite · 83.1% ATS
PPA + PPO + SR + Havoc
All 4 Agree
→ Purdue
Elite · 82.4% ATS
PPA + PPO + Havoc
3 Agree
→ Purdue
Elite · 73.9% ATS
PPA + Success Rate
Both Agree
→ Purdue
Individual Factors — Ranked by Predictive Strength
PPA Overall
Points added per play · Elite predictor
PPA Passing
Pass efficiency edge · Strong predictor
Havoc Total
Def. disruption rate · Strong predictor
TFLs, sacks, PBUs, forced fumbles — higher is better
Points Per Opp
Drive-finishing edge · Strong predictor
Success Rate
Play consistency edge · Solid predictor
Field Position
Avg start (lower=better) · Solid predictor
Avg yards from own endzone to average start — lower is better · longer bar = better field position
Advanced stats sourced from CFBD · 2021 season ·
Edges are matchup-adjusted (offense vs opponent defense)
Power Ratings
Team Power Ratings
Overall · Offense · Defense ratings · Updated as season progresses
Power ratings updated throughout the season as results accumulate
Momentum Control (CSS)
Consecutive Scoring Sequences
Who builds scoring momentum?
Purdue Edge
Purdue +1.07
CSS Edge (season-to-date)
Teams with this edge win 73.7% of games historically
Based on 9 games this season
Game Control (GC)
Win Probability Dominance
Who controls games start to finish?
Purdue Edge
Purdue +15.5
GC Edge (season-to-date)
Teams with this edge win 64.9% of games historically
Based on 10 games this season
Spread Context
ATS Historical Context
Based on 2021–2025 backtest · FBS vs FBS · Regular season
Both metrics agree on Purdue with a moderate edge in both. This is the strongest ATS signal in our backtest: teams in this situation have covered 55.8% of the time (n=113).
ATS data is informational only. Past cover rates do not guarantee future results.
Coaching Matchup
Purdue
Jeff Brohm #1
21–26 (45%)
· Yr 5 at school
OC
Brian Brohm
Yr 1
#1
DC
Brad Lambert
Yr 1
#1
Northwestern
Pat Fitzgerald #1
107–83 (56%)
· Yr 16 at school
OC
Mike Bajakian
Yr 1
#1
DC
Jim O'Neil
Yr 1
#1
About these metrics
Advanced Stats shows matchup-adjusted factor edges (offense vs opponent defense). Combination signals — when PPA, PPO, Success Rate, and Havoc all point the same direction — have historically predicted the SU winner in 95–97% of games and the ATS winner in 82–83% of games (2021–2025, FBS vs FBS, regular season).
Impact: Advanced Stats are the best performance based metric used to predict the outcome of games. ✓
Momentum Control (CSS) measures consecutive scoring sequences — when a team scores, holds the opponent scoreless, then scores again. Teams entering a game with a CSS edge of +1.0 or more have won 71–78% of games historically (2021–2025, FBS vs FBS).
Impact: CSS is not a predictive ATS advantage, data shows this is already considered when lines are set. ✗
Game Control (GC) measures win probability dominance — how thoroughly a team controlled the game from start to finish. Teams with a GC edge of +12 or more have won 67–76% of games historically. When both metrics agree, combined confidence is higher. When they split, treat as a lean at best.
Impact: GS is not a predictive ATS advantage, data shows this is already considered when lines are set. ✗
Power Ratings are a custom-built composite of a Teams Talent, Experience & Production, Coaching & Performance Metrics. These are updated constantly with roster changes, performance once the games start for the 2026 season, injuries the team is dealing with and scheduling situations.
Impact: There are a wide range of power ratings available, we think ours is the best, you can decide for yourself ✓
Advanced Stats shows matchup-adjusted factor edges (offense vs opponent defense). Combination signals — when PPA, PPO, Success Rate, and Havoc all point the same direction — have historically predicted the SU winner in 95–97% of games and the ATS winner in 82–83% of games (2021–2025, FBS vs FBS, regular season).
Impact: Advanced Stats are the best performance based metric used to predict the outcome of games. ✓
Momentum Control (CSS) measures consecutive scoring sequences — when a team scores, holds the opponent scoreless, then scores again. Teams entering a game with a CSS edge of +1.0 or more have won 71–78% of games historically (2021–2025, FBS vs FBS).
Impact: CSS is not a predictive ATS advantage, data shows this is already considered when lines are set. ✗
Game Control (GC) measures win probability dominance — how thoroughly a team controlled the game from start to finish. Teams with a GC edge of +12 or more have won 67–76% of games historically. When both metrics agree, combined confidence is higher. When they split, treat as a lean at best.
Impact: GS is not a predictive ATS advantage, data shows this is already considered when lines are set. ✗
Power Ratings are a custom-built composite of a Teams Talent, Experience & Production, Coaching & Performance Metrics. These are updated constantly with roster changes, performance once the games start for the 2026 season, injuries the team is dealing with and scheduling situations.
Impact: There are a wide range of power ratings available, we think ours is the best, you can decide for yourself ✓