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Public validation record

2026 Football Model Performance

These results use official OSPR projections locked before kickoff and evaluated against final scores. Mirrored schedule records and live forecasts are excluded.

Evaluated through Oct 15, 2026

Accuracy calculated Oct 16, 2026 8:00 AM EDT

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Performance summary

2,842 games evaluated with ospr-2026.1

Games evaluated

2,842

Winner accuracy

68.5%

1,947 correct

Average margin error

22.5

Lower is better

Average score error

13.3

Per-team points

Brier score

0.203

Probability accuracy

Close projection rate

14.1%

Correct and within 7

Regular season vs. playoffs

A direct comparison using the selected season, week, team, and OSPR model version.

Regular season

Games
2,842
Winner accuracy
68.5%
Margin error
22.5

Playoffs

Games
0
Winner accuracy
—
Margin error
—

Performance by week

Results for the selected model version and season phase.

Week Games Winner accuracy Margin error
Week 1 355 58.3% 22.0
Week 2 351 61.0% 23.3
Week 3 358 62.3% 21.9
Week 4 354 65.3% 23.5
Week 5 356 74.4% 22.6
Week 6 357 80.4% 22.7
Week 7 358 75.4% 22.0
Week 8 348 71.3% 21.8
Week 9 4 25.0% 26.2

Probability calibration

Observed win rate should approach the average predicted probability as sample sizes grow.

Probability Games Predicted Observed Gap Brier
0–9% 13 8.5% 7.7% -0.8 0.069
10–19% 178 15.9% 9.6% -6.4 0.091
20–29% 302 25.5% 23.2% -2.3 0.178
30–39% 445 35.1% 35.1% 0.0 0.227
40–49% 562 45.1% 43.6% -1.5 0.245
50–59% 478 54.9% 57.7% +2.9 0.247
60–69% 404 64.8% 71.0% +6.2 0.205
70–79% 325 74.8% 79.7% +4.9 0.162
80–89% 128 84.0% 86.7% +2.7 0.113
90–99% 7 91.9% 85.7% -6.1 0.127

Performance by prediction confidence

Newer snapshots use historical calibration and comparable sample size. Legacy snapshots fall back to rating-evidence confidence.

Confidence Games Winner accuracy Average margin error
High 2,368 69.6% 22.4 points
Medium 31 80.6% 23.7 points
Low 443 61.9% 22.6 points

Performance by risk indicator

A game may appear in more than one group because indicators describe different kinds of uncertainty.

Indicator Games Winner accuracy Average margin error
Limited Data 1,515 62.4% 22.9 points
Close Game 2,021 62.8% 22.3 points
Upset Possible 1,886 61.9% 22.1 points
Blowout Range 1 100.0% 23.8 points

Largest misses

The largest margin errors in this selection. A miss is a model result to learn from, not automatically a data error.

Date Matchup Projected Final Margin error
Sep 11, 2026 Farrell vs. Reynolds 25–24 84–0 82.5 points
Sep 25, 2026 Normandy vs. Rocky River 14–28 0–83 68.7 points
Sep 18, 2026 Trotwood-Madison vs. Taft 23–17 72–0 65.6 points
Sep 26, 2026 Bedford vs. Cleveland JFK 18–17 66–0 64.8 points
Sep 18, 2026 John Adams vs. Cleveland JFK 16–18 68–6 64.4 points

Evaluated games

The game-level record behind the summary above.

Sep 18, 2026

St. Marys Memorial vs. Wapakoneta

Missed
Projected
29–17
Final
21–49
Projected winner
St. Marys Memorial
Margin error
39.6

Sep 18, 2026

Cincinnati Northwest vs. Cincinnati Woodward

Correct
Projected
24–16
Final
35–0
Projected winner
Cincinnati Northwest
Margin error
26.9

Sep 18, 2026

New Richmond vs. Purcell Marian

Correct
Projected
22–17
Final
28–14
Projected winner
New Richmond
Margin error
9.3

Sep 18, 2026

Monroe vs. Clinton-Massie

Correct
Projected
24–19
Final
55–34
Projected winner
Monroe
Margin error
16.0

Sep 18, 2026

Hughes vs. Clark Montessori

Correct
Projected
26–17
Final
56–20
Projected winner
Hughes
Margin error
27.0

Sep 18, 2026

Goshen vs. Blanchester

Correct
Projected
23–22
Final
47–14
Projected winner
Goshen
Margin error
32.0

Sep 18, 2026

Franklin vs. Carlisle

Correct
Projected
16–22
Final
14–38
Projected winner
Carlisle
Margin error
17.0

Sep 18, 2026

Elida vs. Ottawa-Glandorf

Correct
Projected
16–29
Final
6–23
Projected winner
Ottawa-Glandorf
Margin error
3.4

Sep 18, 2026

Celina vs. Lima Shawnee

Correct
Projected
25–19
Final
28–13
Projected winner
Celina
Margin error
8.1

Sep 18, 2026

Bishop Fenwick vs. Mount Healthy

Correct
Projected
24–18
Final
28–0
Projected winner
Bishop Fenwick
Margin error
21.1

Sep 18, 2026

Butler vs. Tippecanoe

Missed
Projected
25–24
Final
0–42
Projected winner
Butler
Margin error
43.1

Sep 18, 2026

Archbishop Alter vs. Bellbrook

Correct
Projected
22–26
Final
7–10
Projected winner
Bellbrook
Margin error
0.8

Sep 18, 2026

Zanesville vs. Utica

Missed
Projected
20–21
Final
51–32
Projected winner
Utica
Margin error
19.8

Sep 18, 2026

Tri-Valley vs. Morgan

Correct
Projected
28–14
Final
36–7
Projected winner
Tri-Valley
Margin error
15.3

Sep 18, 2026

Columbus DeSales vs. River Rouge

Correct
Projected
29–15
Final
27–14
Projected winner
Columbus DeSales
Margin error
1.6

Sep 18, 2026

Sheridan vs. River View

Correct
Projected
24–15
Final
72–0
Projected winner
Sheridan
Margin error
63.2

Sep 18, 2026

Miami Trace vs. Western Brown

Correct
Projected
22–20
Final
42–21
Projected winner
Miami Trace
Margin error
20.0

Sep 18, 2026

Marietta vs. Claymont

Correct
Projected
19–26
Final
0–42
Projected winner
Claymont
Margin error
34.6

Sep 18, 2026

London vs. Graham Local

Correct
Projected
21–27
Final
7–10
Projected winner
Graham Local
Margin error
2.1

Sep 18, 2026

Jonathan Alder vs. Springfield Shawnee

Correct
Projected
27–17
Final
35–0
Projected winner
Jonathan Alder
Margin error
25.2

Sep 18, 2026

Jackson vs. Ironton

Correct
Projected
24–27
Final
7–38
Projected winner
Ironton
Margin error
28.6

Sep 18, 2026

Hamilton Township vs. Amanda-Clearcreek

Correct
Projected
26–16
Final
26–6
Projected winner
Hamilton Township
Margin error
9.8

Sep 18, 2026

Granville vs. Hebron Lakewood

Correct
Projected
21–17
Final
49–0
Projected winner
Granville
Margin error
45.5

Sep 18, 2026

Chillicothe vs. Wilmington

Missed
Projected
24–25
Final
62–33
Projected winner
Wilmington
Margin error
29.3

Sep 18, 2026

Bishop Watterson vs. Harvest Prep

Correct
Projected
27–18
Final
50–6
Projected winner
Bishop Watterson
Margin error
35.4

How to interpret these numbers

Winner accuracy shows whether OSPR favored the team that won. Average margin error shows how far the projected point margin was from the final margin.

Brier score measures probability quality from 0 to 1; lower is better. Calibration compares predicted win probabilities with observed outcomes.

Small groups can swing sharply, so every percentage is shown with its evaluated game count.

Injuries, roster changes, weather, and information not reflected in recorded results may affect individual games.