Prediction Audit: Compostela vs Sestao River Prediction, Odds & AI Betting Tips

Sep 20, 2026 - 15:00
2 1.32
0 1.28
xG Accuracy: 58%

AI correctly predicted the Compostela win.

The match finished 2–0, 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 Over 2.5 Under 2.5 (2 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Compostela Compostela ✔ Correct
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 2-0 ✖ Incorrect

Model vs Closing Market

Moderate Disagreement

The model rates Sestao River considerably stronger than the closing betting market.

Largest probability gap: Sestao River +5.3 pp

Outcome Model Closing Market Difference Signal
Compostela 36.1% 40.2% -4.1 pp Aligned
Draw 29.6% 30.9% -1.3 pp Aligned
Sestao River 34.2% 28.9% +5.3 pp Model Higher

The statistical model estimates Sestao River's win probability at 34.2%, compared with the closing market's implied probability of 28.9%, a difference of 5.3 percentage points. This highlights a substantial disagreement between the model's assessment and the market consensus, rather than 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: PRE5.

After full time, the model's directional lean matched the result (Compostela win 2–0).

Market Assessment

The fair estimate shows a modest edge over current market pricing on Sestao River.

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

Post Match Insights

What failed

  • Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
  • Over / Under 2.5: model leaned Over 2.5; match finished Under 2.5 (2 goals)

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced Compostela more conservatively (30.8% vs model 36.1%, 5.3 pp), but the model's lean was validated (Compostela win 2–0).

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Prediction Timeline

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

  1. Sep 20, 2026 · 14:59 UTC Forecast generated
    • Model 1X2 · Compostela 36.1% · Draw 29.7% · Sestao River 34.2%
    • xG · Compostela 1.32 — Sestao River 1.28
  2. Sep 20, 2026 · 14:34 UTC Opening odds snapshot PRE30
    • 1X2 odds · Compostela 2.56 · Draw 2.90 · Sestao River 2.82
    • Implied 1X2 · Compostela 35.8% · Draw 31.6% · Sestao River 32.5%
    • Bookmaker · Pinnacle
  3. Sep 20, 2026 · 14:59 UTC Closing snapshot recorded PRE5
    • 1X2 odds · Compostela 2.28 · Draw 2.96 · Sestao River 3.17
    • Implied 1X2 · Compostela 40.2% · Draw 30.9% · Sestao River 28.9%
    • Bookmaker · Pinnacle
  4. Sep 20, 2026 · 15:00 UTC Kickoff
  5. FT Full-time result Compostela win · 2–0
  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 76/100 · High
  • Validation: Pass
Evidence ★★★★★
  • No strong statistical edge
  • Direction agrees with model lean
  • Validation passed
Market Compatibility 73/100
Betting Confidence 79/100

Validation Report

Immutable Snapshot

Prediction Time: Sep 14, 2026 · 02:09 UTC Snapshot ID: dp-8684528

Closing Odds 3.17
AI Fair Odds —
CLV Pending
Final Result Compostela win · Compostela 2–0 Sestao River
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

Below is a compact, numbers-first snapshot aligned with the same engine as the cards above.

  • League: Segunda División RFEF - Group 1
  • Fixture: Compostela vs Sestao River
  • Kickoff: 2026-09-20 15:00:00
  • 1X2 (model): Home 36.1% · Draw 29.7% · Away 34.2%
  • xG (showing): Compostela 1.32 — Sestao River 1.28 (total xG ≈ 2.6)
  • Primary / headline line (Betting Primary Pick when shown): Over 2.5 goals
  • Model: 48.2% · Implied: 35.5% · Probability edge: +12.7 pts · Est. EV: +29.2%
  • BTTS (model): Yes 54.5% · No 45.5%
  • Correct score (top bin): 1-1 (12.5%)

Totals and BTTS are evaluated against current market prices where available.

1X2 can look balanced even when side markets show clearer structure.

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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Segunda División RFEF - Group 1 Segunda División RFEF - Group 1 — Standings
# TEAM MP W D L PTS
1 Sestao River 4 3 0 1 9
2 Ourense CF 4 3 0 1 9
3 Gernika 3 2 1 0 7
4 Bergantiños 3 2 1 0 7
5 Portugalete 3 2 1 0 7
6 Eibar II 3 2 0 1 6
7 Deportivo Alavés II 3 2 0 1 6
8 Coruxo 3 1 1 1 4
9 Basconia 3 1 1 1 4
10 Amorebieta 4 1 1 2 4
11 Compostela 3 1 1 1 4
12 Atlético Astorga 4 1 0 3 3
13 Marino de Luanco 3 1 0 2 3
14 Real Oviedo II 3 1 0 2 3
15 Gimnástica Torrelavega 3 1 0 2 3
16 Arosa 3 0 2 1 2
17 Racing Santander II 3 0 1 2 1
18 Llanera 3 0 0 3 0
# TEAM MP GS GC +/- PTS
1 Gernika 3 10 2 +8 7
2 Bergantiños 3 6 2 +4 7
3 Basconia 3 6 6 0 4
4 Sestao River 4 5 2 +3 9
5 Ourense CF 4 5 3 +2 9
6 Deportivo Alavés II 3 5 4 +1 6
7 Atlético Astorga 4 5 6 -1 3
8 Eibar II 3 4 2 +2 6
9 Coruxo 3 4 3 +1 4
10 Amorebieta 4 4 4 0 4
11 Arosa 3 4 8 -4 2
12 Portugalete 3 3 1 +2 7
13 Marino de Luanco 3 3 5 -2 3
14 Real Oviedo II 3 3 6 -3 3
15 Compostela 3 2 3 -1 4
16 Gimnástica Torrelavega 3 2 5 -3 3
17 Llanera 3 2 8 -6 0
18 Racing Santander II 3 1 4 -3 1