Prediction Audit: Castellón II vs Terrassa Prediction, Odds & AI Betting Tips

Sep 06, 2026 - 10:00
0 1.32
1 1.28
xG Accuracy: 64%

The model missed the final outcome (Terrassa win 0–1).

The model had projected Castellón II at 36.1%, 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 Under 2.5 (1 goals) ✔ Correct
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Castellón II Terrassa ✖ Incorrect
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 0-1 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices Terrassa higher than the statistical model.

Largest probability gap: Terrassa -14.0 pp

Outcome Model Closing Market Difference Signal
Castellón II 36.1% 22.5% +13.6 pp Model Edge
Draw 29.6% 29.3% +0.4 pp Aligned
Terrassa 34.2% 48.2% -14.0 pp Market Higher

The closing market estimates Terrassa's win probability at 48.2%, compared with the model's estimate of 34.2%, a difference of 14.0 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 Terrassa win 0–1.

Market Assessment

The market is materially more optimistic about Terrassa 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

  • Under 2.5 goals aligned with the xG profile
  • Exact score 0–1 fell within the model's highlighted bins

What failed

  • Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
  • 1X2: model leaned Castellón II; match finished Terrassa

Market lesson

The closing market differed from the model on Castellón II by 14.0 percentage points (50.1% vs model 36.1%) — 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. Sep 06, 2026 · 10:01 UTC Forecast generated
    • Model 1X2 · Castellón II 36.1% · Draw 29.7% · Terrassa 34.2%
    • xG · Castellón II 1.32 — Terrassa 1.28
  2. Sep 06, 2026 · 09:32 UTC Opening odds snapshot PRE30
    • 1X2 odds · Castellón II 4.07 · Draw 3.13 · Terrassa 1.90
    • Implied 1X2 · Castellón II 22.5% · Draw 29.3% · Terrassa 48.2%
    • Bookmaker · Pinnacle
  3. Sep 06, 2026 · 10:01 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Castellón II 4.07 · Draw 3.13 · Terrassa 1.90
    • Implied 1X2 · Castellón II 22.5% · Draw 29.3% · Terrassa 48.2%
    • Bookmaker · Pinnacle
  4. Sep 06, 2026 · 10:00 UTC Kickoff
  5. FT Full-time result Terrassa win · 0–1
  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: Monitor
Historical Decision Monitor
Outcome Missed
Pre-match metrics (historical context)
Prediction Reliability 56/100 · Moderate
  • Validation: Warning
  • Large market gap (14 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Market has already priced much of the edge
  • Validation warning
Pricing proximity (inverse gap) 10/100
Monitoring Confidence 19/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 31, 2026 · 01:09 UTC Snapshot ID: dp-6323175

Closing Odds 1.9
AI Fair Odds —
CLV Pending
Final Result Terrassa win · Castellón II 0–1 Terrassa
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

Pre-match snapshot for this fixture.

  • League: Segunda División RFEF - Group 2
  • Fixture: Castellón II vs Terrassa
  • Kickoff: 2026-09-06 10:00:00
  • 1X2 (model): Home 36.1% · Draw 29.7% · Away 34.2%
  • xG (showing): Castellón II 1.32 — Terrassa 1.28 (total xG ≈ 2.6)
  • Value headline: None (actionable) — best tracked EV is about +0.4%, 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 54.5% · No 45.5%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS Yes
  • BTTS (model): Yes 54.5% · No 45.5%
  • 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: 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 27, 2026 (UTC)

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Segunda División RFEF - Group 2 Segunda División RFEF - Group 2 — Standings
# TEAM MP W D L PTS
1 Barcelona B 4 3 1 0 10
2 Osasuna II 3 3 0 0 9
3 Ebro 4 2 1 1 7
4 Terrassa 4 2 1 1 7
5 Espanyol II 3 2 0 1 6
6 Manresa 4 2 0 2 6
7 Utebo 3 1 2 0 5
8 UD Logroñés II 4 1 2 1 5
9 Girona II 3 1 1 1 4
10 Olot 3 1 1 1 4
11 Barbastro 3 1 1 1 4
12 Tudelano 3 1 1 1 4
13 Peña Sport 4 1 1 2 4
14 Reddis 3 1 0 2 3
15 Calamocha 3 1 0 2 3
16 SD Logroñés 3 0 2 1 2
17 Arnedo 3 0 0 3 0
18 Náxara 3 0 0 3 0
# TEAM MP GS GC +/- PTS
1 Barcelona B 4 10 0 +10 10
2 Espanyol II 3 8 3 +5 6
3 Girona II 3 8 7 +1 4
4 Manresa 4 7 4 +3 6
5 Osasuna II 3 6 1 +5 9
6 Ebro 4 5 3 +2 7
7 Olot 3 5 5 0 4
8 Utebo 3 4 3 +1 5
9 Barbastro 3 4 4 0 4
10 SD Logroñés 3 4 5 -1 2
11 UD Logroñés II 4 3 3 0 5
12 Tudelano 3 3 4 -1 4
13 Peña Sport 4 3 8 -5 4
14 Calamocha 3 3 8 -5 3
15 Terrassa 4 2 1 +1 7
16 Arnedo 3 2 9 -7 0
17 Reddis 3 1 3 -2 3
18 Náxara 3 1 8 -7 0