Prediction Audit: EVV vs Halsteren Prediction, Odds & AI Betting Tips

Sep 22, 2026 - 18:00
3 1.31
1 1.29
xG Accuracy: 58%

AI correctly predicted the EVV win.

The match finished 3–1, validating the model's directional assessment.

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 No Yes ✖ Incorrect
  • 1X2 EVV EVV ✔ Correct
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 3-1 ✖ Incorrect

Model vs Closing Market

Strong Disagreement

The closing market prices EVV higher than the statistical model.

Largest probability gap: EVV -12.4 pp

Outcome Model Closing Market Difference Signal
EVV 35.6% 48.0% -12.4 pp Market Higher
Draw 29.6% 22.2% +7.4 pp Model Higher
Halsteren 34.7% 29.7% +5.0 pp Aligned

The closing market estimates EVV's win probability at 48.0%, compared with the model's estimate of 35.6%, a difference of 12.4 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 model's directional lean matched the result (EVV win 3–1).

Market Assessment

The market is materially more optimistic about EVV than the current fair estimate.

  • Investors may be incorporating information not fully reflected in the baseline model.
  • Tournament-specific context can shift market pricing.

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

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced EVV higher (48.0% vs model 35.6%, 12.4 pp), but the model's lean was validated (EVV win 3–1).

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Prediction Timeline

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

  1. Sep 22, 2026 · 18:01 UTC Forecast generated
    • Model 1X2 · EVV 35.6% · Draw 29.7% · Halsteren 34.7%
    • xG · EVV 1.31 — Halsteren 1.29
  2. Sep 22, 2026 · 17:31 UTC Opening odds snapshot PRE30
    • 1X2 odds · EVV 1.87 · Draw 4.04 · Halsteren 3.02
    • Implied 1X2 · EVV 48.0% · Draw 22.2% · Halsteren 29.7%
    • Bookmaker · Pinnacle
  3. Sep 22, 2026 · 18:01 UTC Closing snapshot recorded PRE1
    • 1X2 odds · EVV 1.87 · Draw 4.04 · Halsteren 3.02
    • Implied 1X2 · EVV 48.0% · Draw 22.2% · Halsteren 29.7%
    • Bookmaker · Pinnacle
  4. Sep 22, 2026 · 18:00 UTC Kickoff
  5. FT Full-time result EVV win · 3–1
  6. FT Prediction validated Directional lean matched full-time result
  7. Archived Prediction review

Historical Snapshot

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

Historical verdict: Monitor
Historical Decision Monitor
Outcome Validated
Pre-match metrics (historical context)
Prediction Reliability 57/100 · Moderate
  • Validation: Warning
  • Large market gap (12 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Market has already priced much of the edge
  • Validation warning
Pricing proximity (inverse gap) 38/100
Betting Confidence 45/100

Validation Report

Immutable Snapshot

Prediction Time: Sep 16, 2026 · 02:46 UTC Snapshot ID: dp-8991640

Closing Odds 1.87
AI Fair Odds —
CLV Pending
Final Result EVV win · EVV 3–1 Halsteren
Prediction ✔ Correct
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

Quick read on how the model reads this matchup.

  • League: KNVB Beker
  • Fixture: EVV vs Halsteren
  • Kickoff: 2026-09-22 18:00:00
  • 1X2 (model): Home 35.6% · Draw 29.7% · Away 34.7%
  • xG (showing): EVV 1.31 — Halsteren 1.29 (total xG ≈ 2.6)
  • Best +EV line (same label as hero card when Primary thresholds are not met): Under 2.5 goals
  • Model: 51.8% · Implied: 29.4% · Probability edge: +22.4 pts · Est. EV: +70.9%
  • BTTS (model): Yes 54.5% · No 45.5%
  • Correct score (top bin): 1-1 (12.6%)

Use the cards for tiering; this text only restates the same inputs in narrative form.

Correct score remains high-variance even when a line is most likely on paper.

Historical Recommendation

Historical Decision: Monitor

Outcome: Validated — Pre-match lean validated against 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 28, 2026 (UTC)

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