Our model blends Elo + SP+ ratings (PUR Elo 1227, WIS Elo 1502) plus home-field advantage. That projects PUR +3.5 (40% to win), essentially in line with the market.
Pregame Win Probability
Gridpex modelWIS 60% · PUR 40%
Pick: WIS
Play-by-play win probability appears once the game kicks off.
Advanced Matchup — 2025
WIS2025 season · higher-impact side highlightedPUR
Offense
0.01
PPA / play
0.11
35%
Success rate
43%
1.23
Explosiveness
1.24
2.28
Pts / opportunity
3.06
66%
Power success
56%
Defense
0.19
PPA allowed / play
0.27
45%
Success rate allowed
48%
1.17
Explosiveness allowed
1.21
13%
Havoc rate
15%
22%
Stuff rate
18%
Key matchups · Pro
WIS pass offense (0.03 PPA) vs. PUR pass defense (0.40 allowed) — edge PUR.
PUR pass offense (0.14 PPA) vs. WIS pass defense (0.33 allowed) — edge WIS.
WIS rush offense (0.04 PPA) vs. PUR rush defense (0.18 allowed) — edge PUR.
FAQ
Who will win Wisconsin vs. Purdue?
Gridpex's model favors Wisconsin with a 60% win probability.
What's the predicted spread for Wisconsin vs. Purdue?
The model projects Wisconsin by 3.5.
What time is Wisconsin vs. Purdue and what channel is it on?
Time TBD, at Ross-Ade Stadium.
Why trust the number?Gridpex's model is walk-forward validated on 2014–24, out-of-sample: +0.28 pts mean Closing Line Value and 53.5% beat the close. We report the record — wins and losses — never fake locks.
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Gridiron IQ Model
Pinned · the model's take
I make this Wisconsin at 60% to win, projecting Wisconsin by 3.5.