Prediction Audit: Ibiza vs Rayo Majadahonda Prediction, Odds & AI Betting Tips

Sep 05, 2026 - 17:00
2 1.38
1 1.22
xG Accuracy: 79%

AI correctly predicted the Ibiza win.

The match finished 2–1, validating the model's directional assessment.

Tracked markets vs full-time result

Prediction grade B-

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 Yes Yes ✔ Correct
  • 1X2 Ibiza Ibiza ✔ Correct
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 2-1 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices Ibiza higher than the statistical model.

Largest probability gap: Ibiza -15.2 pp

Outcome Model Closing Market Difference Signal
Ibiza 39.0% 54.2% -15.2 pp Market Higher
Draw 29.5% 26.8% +2.8 pp Aligned
Rayo Majadahonda 31.5% 19.1% +12.4 pp Model Edge

The closing market estimates Ibiza's win probability at 54.2%, compared with the model's estimate of 39.0%, a difference of 15.2 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 model's directional lean matched the result (Ibiza win 2–1).

Market Assessment

The market is materially more optimistic about Ibiza 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) — 3 goals materialised
  • Both Teams To Score (Yes) matched the full-time result
  • Exact score 2–1 fell within the model's highlighted bins

What failed

  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (3 goals)

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced Ibiza higher (54.2% vs model 39.0%, 15.2 pp), but the model's lean was validated (Ibiza win 2–1).

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Prediction Timeline

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

  1. Sep 05, 2026 · 16:59 UTC Forecast generated
    • Model 1X2 · Ibiza 39.0% · Draw 29.5% · Rayo Majadahonda 31.5%
    • xG · Ibiza 1.38 — Rayo Majadahonda 1.22
  2. Sep 05, 2026 · 15:32 UTC Opening odds snapshot PRE30
    • 1X2 odds · Ibiza 1.69 · Draw 3.42 · Rayo Majadahonda 4.80
    • Implied 1X2 · Ibiza 54.2% · Draw 26.8% · Rayo Majadahonda 19.1%
    • Bookmaker · Pinnacle
  3. Sep 05, 2026 · 16:59 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Ibiza 1.69 · Draw 3.42 · Rayo Majadahonda 4.80
    • Implied 1X2 · Ibiza 54.2% · Draw 26.8% · Rayo Majadahonda 19.1%
    • Bookmaker · Pinnacle
  4. Sep 05, 2026 · 17:00 UTC Kickoff
  5. FT Full-time result Ibiza win · 2–1
  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 55/100 · Moderate
  • Validation: Warning
  • Large market gap (15 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Pricing remains divergent
  • Validation warning
Pricing proximity (inverse gap) 24/100
Betting Confidence 44/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 30, 2026 · 03:42 UTC Snapshot ID: dp-6161084

Closing Odds 1.69
AI Fair Odds —
CLV Pending
Final Result Ibiza win · Ibiza 2–1 Rayo Majadahonda
Prediction ✔ Correct
Decision Grade B-

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: Primera División RFEF - Group 2
  • Fixture: Ibiza vs Rayo Majadahonda
  • Kickoff: 2026-09-05 17:00:00
  • 1X2 (model): Home 39.0% · Draw 29.5% · Away 31.5%
  • xG (showing): Ibiza 1.38 — Rayo Majadahonda 1.22 (total xG ≈ 2.6)
  • 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 Under 2.5 (Under 2.5 51.8% · Over 2.5 48.2%); BTTS Yes (Yes 54.4% · No 45.6%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS Yes
  • BTTS (model): Yes 54.4% · No 45.6%
  • Correct score (top bin): 1-1 (12.5%)

Saying “no value” on a snapshot is a feature, not a bug: it protects readers from forcing a play when the edge is not there.

Prefer skipping to over-staking when the engine is honest about missing edge.

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 29, 2026 (UTC)

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Primera División RFEF - Group 2 Primera División RFEF - Group 2 — Standings
# TEAM MP W D L PTS
1 Villarreal II 5 4 1 0 13
2 Zaragoza 5 4 0 1 12
3 Real Jaén 4 3 1 0 10
4 Real Murcia 4 3 0 1 9
5 Hércules 5 3 0 2 9
6 Atlético Madrid II 5 2 2 1 8
7 Gimnastic 5 2 1 2 7
8 Sant Andreu 5 2 1 2 7
9 Alcorcon 4 1 3 0 6
10 Ibiza 5 2 0 3 6
11 FC Cartagena 4 1 2 1 5
12 Real Madrid II 4 1 2 1 5
13 Antequera 4 1 2 1 5
14 Águilas 5 1 2 2 5
15 Huesca 4 1 2 1 5
16 Rayo Majadahonda 4 1 1 2 4
17 Algeciras 5 1 1 3 4
18 Juventud Torremolinos 5 0 1 4 1
19 Europa Fc 4 0 1 3 1
20 Teruel 4 0 1 3 1
# TEAM MP GS GC +/- PTS
1 Villarreal II 5 12 5 +7 13
2 Atlético Madrid II 5 9 5 +4 8
3 Real Jaén 4 8 3 +5 10
4 Zaragoza 5 8 5 +3 12
5 Real Murcia 4 8 6 +2 9
6 Gimnastic 5 7 7 0 7
7 Ibiza 5 7 8 -1 6
8 Algeciras 5 7 11 -4 4
9 Alcorcon 4 6 3 +3 6
10 Antequera 4 6 6 0 5
11 Juventud Torremolinos 5 6 11 -5 1
12 Hércules 5 5 5 0 9
13 Sant Andreu 5 5 5 0 7
14 Rayo Majadahonda 4 5 5 0 4
15 FC Cartagena 4 4 3 +1 5
16 Águilas 5 4 6 -2 5
17 Real Madrid II 4 3 2 +1 5
18 Huesca 4 3 5 -2 5
19 Europa Fc 4 2 7 -5 1
20 Teruel 4 0 7 -7 1