Predictions / Football / Netherlands. Eredivisie / Groningen vs Fortuna Sittard

Prediction Audit: Groningen vs Fortuna Sittard Prediction, Odds & AI Betting Tips

Groningen Groningen
Aug 28, 2026 - 18:00
2 2.33
3 1.42
xG Accuracy: 59%
Fortuna Sittard Fortuna Sittard

The model missed the final outcome (Fortuna Sittard win 2–3).

The model had projected Groningen at 59.1%, but the full-time result went the other way.

Tracked markets vs full-time result

Prediction grade C

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 Groningen Fortuna Sittard ✖ Incorrect
  • Correct Score Insights 2-1, 1-1, 3-1, 2-2, 2-0 2-3 ✖ Incorrect

Model vs Closing Market

Moderate Disagreement

The closing market prices Groningen higher than the statistical model.

Largest probability gap: Groningen -5.2 pp

Outcome Model Closing Market Difference Signal
Groningen 59.1% 64.3% -5.2 pp Market Higher
Draw 21.1% 19.9% +1.2 pp Aligned
Fortuna Sittard 19.8% 15.7% +4.0 pp Aligned

The closing market estimates Groningen's win probability at 64.3%, compared with the model's estimate of 59.1%, a difference of 5.2 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 Fortuna Sittard win 2–3.

Market Assessment

The market and model broadly agree on Groningen. 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 3.75) — 5 goals materialised
  • Both Teams To Score (Yes) matched the full-time result
  • Over 2.5 goals aligned with the xG profile

What failed

  • 1X2: model leaned Groningen; match finished Fortuna Sittard
  • Exact score: outside the model's top score bins

Market lesson

The closing market differed from the model on Groningen by 5.2 percentage points (64.3% vs model 59.1%) — 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. Aug 28, 2026 · 19:27 UTC Forecast generated
    • Model 1X2 · Groningen 59.1% · Draw 21.1% · Fortuna Sittard 19.8%
    • xG · Groningen 2.33 — Fortuna Sittard 1.42
  2. Aug 28, 2026 · 17:32 UTC Opening odds snapshot PRE30
    • 1X2 odds · Groningen 1.50 · Draw 4.84 · Fortuna Sittard 6.14
    • Implied 1X2 · Groningen 64.3% · Draw 19.9% · Fortuna Sittard 15.7%
    • Bookmaker · Pinnacle
  3. Aug 28, 2026 · 18:00 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Groningen 1.50 · Draw 4.84 · Fortuna Sittard 6.14
    • Implied 1X2 · Groningen 64.3% · Draw 19.9% · Fortuna Sittard 15.7%
    • Bookmaker · Pinnacle
  4. Aug 28, 2026 · 18:00 UTC Kickoff
  5. FT Full-time result Fortuna Sittard win · 2–3
  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: Observe
Historical Decision No Primary Bet
Outcome Missed
Pre-match metrics (historical context)
Prediction Reliability 70/100 · High
  • Validation: Pass
  • High xG deviation from league baseline (73%+)
Evidence ★★★★★
  • Moderate model lean
  • Direction agrees with model lean
  • Validation passed
Market Compatibility 73/100
Betting Confidence 73/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 22, 2026 · 03:35 UTC Snapshot ID: dp-4941285

Closing Odds 1.5
AI Fair Odds —
CLV Pending
Final Result Fortuna Sittard win · Groningen 2–3 Fortuna Sittard
Prediction ✖ Missed
Decision Grade C

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: Eredivisie
  • Fixture: Groningen vs Fortuna Sittard
  • Kickoff: 2026-08-28 18:00:00
  • 1X2 (model): Home 59.1% · Draw 21.1% · Away 19.8%
  • xG (showing): Groningen 2.33 — Fortuna Sittard 1.42 (total xG ≈ 3.75)
  • Value headline: None (actionable) — best tracked EV is about +1.2%, still below the +2.0% minimum for a headline / default stake (no default bet).
  • Structural leans (not bets): Structural lean (model): O/U 2.5 Over 2.5 (Under 2.5 27.7% · Over 2.5 72.3%); BTTS Yes (Yes 69.5% · No 30.5%) Value lean (pricing): O/U 2.5 Over 2.5; BTTS Yes
  • BTTS (model): Yes 69.5% · No 30.5%
  • Correct score (top bin): 2-1 (9.1%)

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.

Most likely correct score stays a low-probability tail: use it for context, not as a must-bet story.

Historical Recommendation

Historical Decision: No Primary Bet

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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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