Predictions / Football / Norway. 3. Division - Girone 6 / Brumunddal vs Sandefjord II

Prediction Audit: Brumunddal vs Sandefjord II Prediction, Odds & AI Betting Tips

Brumunddal Brumunddal
Sep 21, 2026 - 16:00
1 1.32
2 1.28
xG Accuracy: 75%
Sandefjord II Sandefjord II

The model missed the final outcome (Sandefjord II win 1–2).

The model had projected Brumunddal at 36.1%, but the full-time result went the other way.

Tracked markets vs full-time result

Prediction grade F

Each row compares the pre-match model lean to the full-time result.

  • Market Prediction Result Outcome
  • Over / Under 2.5 Under 2.5 Over 2.5 (3 goals) ✖ Incorrect
  • Both Teams To Score BTTS No Yes ✖ Incorrect
  • 1X2 Brumunddal Sandefjord II ✖ Incorrect
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 1-2 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices Sandefjord II higher than the statistical model.

Largest probability gap: Sandefjord II -41.4 pp

Outcome Model Closing Market Difference Signal
Brumunddal 36.1% 13.6% +22.6 pp Model Edge
Draw 29.6% 10.8% +18.9 pp Model Edge
Sandefjord II 34.2% 75.7% -41.4 pp Market Higher

The closing market estimates Sandefjord II's win probability at 75.7%, compared with the model's estimate of 34.2%, a difference of 41.4 percentage points. This highlights a disagreement between the model and market consensus, without indicating which view is ultimately correct.

Model probabilities are generated from the statistical xG model using a Poisson distribution. Closing market probabilities are derived from consensus closing 1X2 odds after margin removal. Values represent implied probabilities rather than betting recommendations. Closing snapshot: PRE1.

After full time, the result was Sandefjord II win 1–2.

Post Match Insights

What worked

  • Expected goals projected a high-scoring match (ΣxG 2.60) — 3 goals materialised
  • Exact score 1–2 fell within the model's highlighted bins

What failed

  • Both Teams To Score: model leaned BTTS No; match finished BTTS Yes
  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (3 goals)

Market lesson

The closing market differed from the model on Brumunddal by 41.4 percentage points (77.5% vs model 36.1%) — in this case the market view proved closer.

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Prediction Timeline

How this prediction moved from forecast to full-time review.

  1. Sep 21, 2026 · 15:59 UTC Forecast generated
    • Model 1X2 · Brumunddal 36.1% · Draw 29.7% · Sandefjord II 34.2%
    • xG · Brumunddal 1.32 — Sandefjord II 1.28
  2. Sep 21, 2026 · 15:29 UTC Opening odds snapshot PRE30
    • 1X2 odds · Brumunddal 6.48 · Draw 8.14 · Sandefjord II 1.16
    • Implied 1X2 · Brumunddal 13.6% · Draw 10.8% · Sandefjord II 75.7%
    • Bookmaker · Pinnacle
  3. Sep 21, 2026 · 15:59 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Brumunddal 6.48 · Draw 8.14 · Sandefjord II 1.16
    • Implied 1X2 · Brumunddal 13.6% · Draw 10.8% · Sandefjord II 75.7%
    • Bookmaker · Pinnacle
  4. Sep 21, 2026 · 16:00 UTC Kickoff
  5. FT Full-time result Sandefjord II win · 1–2
  6. FT Prediction missed 1X2 lean did not match full-time result
  7. Archived Prediction review

Historical Snapshot

Frozen at kickoff — the model output as it stood before the match started.

Historical verdict: Cautious / Wait

Historical label: Originally displayed as "Wait for validation".

Historical Decision Wait
Outcome Missed
Pre-match metrics (historical context)
Prediction Reliability 28/100 · Low
  • Validation: Fail
  • Large market gap (41 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Market strongly disagrees on price
  • Validation failed
Pricing proximity (inverse gap) 0/100
Monitoring Confidence 8/100

Validation Report

Immutable Snapshot

Prediction Time: Sep 15, 2026 · 02:48 UTC Snapshot ID: dp-8839388

Closing Odds 1.16
AI Fair Odds —
CLV Pending
Final Result Sandefjord II win · Brumunddal 1–2 Sandefjord II
Prediction ✖ Missed
Decision Grade F

Model Performance

This prediction contributes to:

  • Primary Bets ROI (180d): -100.0%

Review FAQ

How accurate was the prediction?
This page grades directional markets (1X2, Over/Under 2.5, BTTS) against the full-time result. The prediction grade reflects how many of those tracked markets matched reality.
What does xG Accuracy measure?
xG Accuracy compares the model's pre-match expected-goals profile to the actual scoreline — not whether every market hit. A strong directional review can coexist with a moderate xG accuracy score.
Why wasn't the exact score predicted?
Correct-score outcomes are low-probability tails even when the model reads the match profile well. We highlight top score bins for context; missing the exact line does not invalidate a directional review.
Does this improve the AI record?
Each finished match is logged in our validation pipeline. Aggregated hit rates and CLV studies are published separately — this page is the per-match audit trail.

Predictions are for informational purposes only. Always gamble responsibly and within your limits. Past performance does not guarantee future results.

AI match briefing

AI Match Summary

Model favours Brumunddal; market prices Sandefjord II instead — inputs may be missing or stale.

  • Model: Brumunddal 1.32 xG vs Sandefjord II 1.28 → Brumunddal 36.1%
  • Market: Sandefjord II ~13.6% implied
  • Validation failed — do not treat 1X2 EV as actionable.

Do not act on 1X2 value until validation passes. Structural leans (O/U, BTTS) need separate odds review.

Structural lean (model): O/U 2.5 Under 2.5 (Under 2.5 51.8% · Over 2.5 48.2%); BTTS No (Yes 54.5% · No 45.5%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS No

Historical Recommendation

Historical Decision: Wait

Outcome: Missed — Pre-match 1X2 lean did not match the full-time result.

Risk Factors Considered Before Kickoff

  • Price movement: implied probabilities and EV move with odds.
  • Sample / data gaps: low-information leagues widen forecast bands.
  • In-play state: goals and red cards are not modelled here.
  • Scoreline variance: the most likely scoreline is still usually a low absolute probability outcome (often well below 20%).

Last Updated

September 30, 2026 (UTC)

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3. Division - Girone 6 3. Division - Girone 6 — Standings
# TEAM MP W D L PTS
1 Lillehammer 21 16 2 3 50
2 Elverum 21 13 2 6 41
3 Råde 21 12 3 6 39
4 Gjøvik-Lyn 21 11 2 8 35
5 Oppsal 21 10 3 8 33
6 Drøbak / Frogn 21 9 5 7 32
7 Sandefjord II 21 10 2 9 32
8 Ørn Horten 21 9 5 7 32
9 Lyn II 20 9 3 8 30
10 Sarpsborg 08 II 21 8 4 9 28
11 Raelingen 20 8 4 8 28
12 Fram 21 6 4 11 22
13 Brumunddal 21 3 3 15 12
14 Bjørkelangen 21 1 0 20 3
# TEAM MP GS GC +/- PTS
1 Lillehammer 21 79 30 +49 50
2 Råde 21 70 40 +30 39
3 Elverum 21 56 36 +20 41
4 Sandefjord II 21 53 45 +8 32
5 Sarpsborg 08 II 21 49 49 0 28
6 Lyn II 20 47 46 +1 30
7 Drøbak / Frogn 21 46 30 +16 32
8 Ørn Horten 21 40 35 +5 32
9 Fram 21 38 48 -10 22
10 Raelingen 20 38 49 -11 28
11 Oppsal 21 37 31 +6 33
12 Gjøvik-Lyn 21 31 20 +11 35
13 Brumunddal 21 25 84 -59 12
14 Bjørkelangen 21 16 82 -66 3
3. Division - Girone 6 Norway. 3. Division - Girone 6 Predictions