Predictions / Football / Germany. U19 Bundesliga / Arminia Bielefeld U19 vs Havelse U19

Prediction Audit: Arminia Bielefeld U19 vs Havelse U19 Prediction, Odds & AI Betting Tips

Arminia Bielefeld U19 Arminia Bielefeld U19
Sep 26, 2026 - 11:00
4 1.27
0 1.33
xG Accuracy: 33%
Havelse U19 Havelse U19

The model missed the final outcome (Arminia Bielefeld U19 win 4–0).

The model had projected Havelse U19 at 36.6%, 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 (4 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Havelse U19 Arminia Bielefeld U19 ✖ Incorrect
  • Correct Score Insights 1-1, 0-1, 1-0, 1-2, 2-1 4-0 ✖ Incorrect

Model vs Closing Market

Strong Disagreement

The closing market prices Arminia Bielefeld U19 higher than the statistical model.

Largest probability gap: Arminia Bielefeld U19 -45.3 pp

Outcome Model Closing Market Difference Signal
Arminia Bielefeld U19 33.8% 79.0% -45.3 pp Market Higher
Draw 29.6% 12.8% +16.8 pp Model Edge
Havelse U19 36.6% 8.1% +28.5 pp Model Edge

The closing market estimates Arminia Bielefeld U19's win probability at 79.0%, compared with the model's estimate of 33.8%, a difference of 45.3 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 Arminia Bielefeld U19 win 4–0.

Post Match Insights

What worked

  • Expected goals projected a high-scoring match (ΣxG 2.60) — 4 goals materialised

What failed

  • Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (4 goals)

Market lesson

The closing market differed from the model on Havelse U19 by 45.3 percentage points (81.9% vs model 36.6%) — 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 26, 2026 · 11:01 UTC Forecast generated
    • Model 1X2 · Arminia Bielefeld U19 33.8% · Draw 29.6% · Havelse U19 36.6%
    • xG · Arminia Bielefeld U19 1.27 — Havelse U19 1.33
  2. Sep 26, 2026 · 10:31 UTC Opening odds snapshot PRE30
    • 1X2 odds · Arminia Bielefeld U19 1.13 · Draw 6.95 · Havelse U19 11.00
    • Implied 1X2 · Arminia Bielefeld U19 79.0% · Draw 12.8% · Havelse U19 8.1%
    • Bookmaker · Marathonbet
  3. Sep 26, 2026 · 11:01 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Arminia Bielefeld U19 1.13 · Draw 6.95 · Havelse U19 11.00
    • Implied 1X2 · Arminia Bielefeld U19 79.0% · Draw 12.8% · Havelse U19 8.1%
    • Bookmaker · Marathonbet
  4. Sep 26, 2026 · 11:00 UTC Kickoff
  5. FT Full-time result Arminia Bielefeld U19 win · 4–0
  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 26/100 · Low
  • Validation: Fail
  • Large market gap (45 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Market strongly disagrees on price
  • Validation failed
Pricing proximity (inverse gap) 0/100
Monitoring Confidence 7/100

Validation Report

Immutable Snapshot

Prediction Time: Sep 21, 2026 · 00:53 UTC Snapshot ID: dp-10080727

Closing Odds 1.13
AI Fair Odds —
CLV Pending
Final Result Arminia Bielefeld U19 win · Arminia Bielefeld U19 4–0 Havelse U19
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 Havelse U19; market prices Arminia Bielefeld U19 instead — inputs may be missing or stale.

  • Model: Arminia Bielefeld U19 1.27 xG vs Havelse U19 1.33 → Havelse U19 36.6%
  • Market: Arminia Bielefeld U19 ~8.1% 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 Yes (Yes 54.5% · No 45.5%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS Yes

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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