Predictions / Football / Netherlands. Eredivisie / Willem II vs NEC Nijmegen

Prediction Audit: Willem II vs NEC Nijmegen Prediction, Odds & AI Betting Tips

Willem II Willem II
Aug 15, 2026 - 14:30
1 1.41
4 2.07
xG Accuracy: 52%
NEC Nijmegen NEC Nijmegen

AI correctly predicted the NEC Nijmegen win.

The match finished 1–4, validating the model's directional assessment.

Tracked markets vs full-time result

Prediction grade A

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

  • Market Prediction Result Outcome
  • Over / Under 2.5 Over 2.5 Over 2.5 (5 goals) ✔ Correct
  • Both Teams To Score BTTS Yes Yes ✔ Correct
  • 1X2 NEC Nijmegen NEC Nijmegen ✔ Correct
  • Correct Score Insights 1-2, 1-1, 0-2, 2-2, 1-3 1-4 ✖ Incorrect

Model vs Closing Market

Moderate Disagreement

The closing market prices NEC Nijmegen higher than the statistical model.

Largest probability gap: NEC Nijmegen -5.7 pp

Outcome Model Closing Market Difference Signal
Willem II 24.9% 20.7% +4.1 pp Aligned
Draw 23.5% 22.0% +1.6 pp Aligned
NEC Nijmegen 51.6% 57.3% -5.7 pp Market Higher

The closing market estimates NEC Nijmegen's win probability at 57.3%, compared with the model's estimate of 51.6%, a difference of 5.7 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 (NEC Nijmegen win 1–4).

Market Assessment

The market and model broadly agree on NEC Nijmegen. The remaining divergence may reflect differences in team-strength assumptions rather than a directional disagreement.

  • Monitor line movement before kickoff — not a betting recommendation.

Post Match Insights

What worked

  • Expected goals projected a high-scoring match (ΣxG 3.48) — 5 goals materialised
  • NEC Nijmegen attacking xG significantly stronger (2.07 vs 1.41)
  • Both Teams To Score (Yes) matched the full-time result

What failed

  • Exact score: outside the model's top score bins

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced NEC Nijmegen higher (57.3% vs model 51.6%, 5.7 pp), but the model's lean was validated (NEC Nijmegen win 1–4).

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Prediction Timeline

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

  1. Aug 15, 2026 · 19:28 UTC Forecast generated
    • Model 1X2 · Willem II 24.9% · Draw 23.5% · NEC Nijmegen 51.6%
    • xG · Willem II 1.41 — NEC Nijmegen 2.07
  2. Aug 15, 2026 · 14:21 UTC Opening odds snapshot PRE30
    • 1X2 odds · Willem II 4.64 · Draw 4.38 · NEC Nijmegen 1.68
    • Implied 1X2 · Willem II 20.7% · Draw 22.0% · NEC Nijmegen 57.3%
    • Bookmaker · Pinnacle
  3. Aug 15, 2026 · 14:29 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Willem II 4.64 · Draw 4.38 · NEC Nijmegen 1.68
    • Implied 1X2 · Willem II 20.7% · Draw 22.0% · NEC Nijmegen 57.3%
    • Bookmaker · Pinnacle
  4. Aug 15, 2026 · 14:30 UTC Kickoff
  5. FT Full-time result NEC Nijmegen win · 1–4
  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: Observe
Historical Decision No Primary Bet
Outcome Validated
Pre-match metrics (historical context)
Prediction Reliability 70/100 · High
  • Validation: Pass
  • High xG deviation from league baseline (53%+)
Evidence ★★★★★
  • Moderate model lean
  • Direction agrees with model lean
  • Validation passed
Market Compatibility 71/100
Betting Confidence 73/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 09, 2026 · 02:26 UTC Snapshot ID: dp-3356514

Closing Odds 1.68
AI Fair Odds —
CLV Pending
Final Result NEC Nijmegen win · Willem II 1–4 NEC Nijmegen
Prediction ✔ Correct
Decision Grade A

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

Pre-match snapshot for this fixture.

  • League: Eredivisie
  • Fixture: Willem II vs NEC Nijmegen
  • Kickoff: 2026-08-15 14:30:00
  • 1X2 (model): Home 10.0% · Draw 45.0% · Away 45.0%
  • xG (showing): Willem II 1.41 — NEC Nijmegen 2.07 (total xG ≈ 3.48)
  • Value headline: None — no positive EV could be estimated on tracked lines at current best prices (missing odds or thin book depth).
  • Structural leans (not bets): See the Over/Under and BTTS cards for any directional lean text.
  • BTTS (model): Yes N/A · No N/A
  • Correct score (top bin): N/A

The decision block shows no default Primary: Primary needs consensus EV ≥ +5.0% plus strength/reliability/calibration gates. A separate Lean/tracked gate is +2.0% (selective only). Lean labels are directional only — not bankroll-sized recommendations.

If lines move materially, re-run generation or refresh — implied probabilities and any future EV readouts will change first.

Historical Recommendation

Historical Decision: No Primary Bet

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 29, 2026 (UTC)

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Eredivisie Eredivisie — Standings
# TEAM MP W D L PTS
1 AZ Alkmaar 7 6 1 0 19
2 Feyenoord 7 5 2 0 17
3 PSV Eindhoven 7 5 1 1 16
4 Twente 7 5 1 1 16
5 Ajax 7 4 2 1 14
6 Fortuna Sittard 7 4 1 2 13
7 Excelsior 7 3 2 2 11
8 Groningen 7 3 2 2 11
9 GO Ahead Eagles 7 2 4 1 10
10 Heerenveen 7 2 3 2 9
11 NEC Nijmegen 7 2 2 3 8
12 Sparta Rotterdam 7 1 2 4 5
13 Telstar 7 1 2 4 5
14 Cambuur 7 1 2 4 5
15 Utrecht 7 1 2 4 5
16 PEC Zwolle 7 1 1 5 4
17 ADO Den Haag 7 0 2 5 2
18 Willem II 7 0 2 5 2
# TEAM MP GS GC +/- PTS
1 Feyenoord 7 25 7 +18 17
2 PSV Eindhoven 7 24 10 +14 16
3 Ajax 7 21 9 +12 14
4 AZ Alkmaar 7 18 6 +12 19
5 GO Ahead Eagles 7 16 14 +2 10
6 Twente 7 15 7 +8 16
7 Excelsior 7 15 9 +6 11
8 Groningen 7 15 13 +2 11
9 Fortuna Sittard 7 13 14 -1 13
10 NEC Nijmegen 7 12 13 -1 8
11 Heerenveen 7 11 9 +2 9
12 Utrecht 7 11 24 -13 5
13 Sparta Rotterdam 7 10 17 -7 5
14 Cambuur 7 10 19 -9 5
15 ADO Den Haag 7 7 17 -10 2
16 PEC Zwolle 7 6 20 -14 4
17 Willem II 7 6 20 -14 2
18 Telstar 7 5 12 -7 5
# TEAM MP xG xGC +/- PTS
1 PSV Eindhoven 7 12.0 2.7 +9.3 16
2 Feyenoord 7 11.3 3.8 +7.5 17
3 AZ Alkmaar 7 12.4 5.5 +6.9 19
4 Twente 7 5.6 1.5 +4.1 16
5 Ajax 7 5.7 3.1 +2.6 14
6 NEC Nijmegen 7 6.9 4.9 +2.0 8
7 Excelsior 7 4.8 3.9 +0.9 11
8 GO Ahead Eagles 7 6.7 7.7 -1.0 10
9 Telstar 7 6.1 7.1 -1.0 5
10 Groningen 7 7.3 8.6 -1.3 11
11 Heerenveen 7 5.3 7.3 -2.0 9
12 Willem II 7 4.6 6.7 -2.1 2
13 Sparta Rotterdam 7 5.8 8.0 -2.2 5
14 PEC Zwolle 7 4.1 6.4 -2.3 4
15 Utrecht 7 5.3 8.2 -2.9 5
16 Cambuur 7 5.8 11.2 -5.4 5
17 ADO Den Haag 7 3.2 9.3 -6.1 2
18 Fortuna Sittard 7 3.7 10.7 -7.0 13