Predictions / Football / Spain. Segunda División / Celta de Vigo II vs Castellón

Prediction Audit: Celta de Vigo II vs Castellón Prediction, Odds & AI Betting Tips

Aug 31, 2026 - 19:30
1 1.07
2 1.17
xG Accuracy: 78%

AI correctly predicted the Castellón win.

The match finished 1–2, 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 Under 2.5 Over 2.5 (3 goals) ✖ Incorrect
  • Both Teams To Score BTTS No Yes ✖ Incorrect
  • 1X2 Castellón Castellón ✔ Correct
  • Correct Score Insights 1-1, 0-1, 1-0, 0-0, 1-2 1-2 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices Castellón higher than the statistical model.

Largest probability gap: Castellón -16.9 pp

Outcome Model Closing Market Difference Signal
Celta de Vigo II 31.4% 22.7% +8.7 pp Model Higher
Draw 32.2% 23.9% +8.3 pp Model Higher
Castellón 36.4% 53.3% -16.9 pp Market Higher

The closing market estimates Castellón's win probability at 53.3%, compared with the model's estimate of 36.4%, a difference of 16.9 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 (Castellón win 1–2).

Market Assessment

The market is materially more optimistic about Castellón 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

  • Exact score 1–2 fell within the model's highlighted bins

What failed

  • Both Teams To Score: model leaned BTTS No; match finished BTTS Yes
  • 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 Castellón higher (53.3% vs model 36.4%, 16.9 pp), but the model's lean was validated (Castellón win 1–2).

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Prediction Timeline

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

  1. Aug 31, 2026 · 19:29 UTC Forecast generated
    • Model 1X2 · Celta de Vigo II 31.4% · Draw 32.3% · Castellón 36.4%
    • xG · Celta de Vigo II 1.07 — Castellón 1.17
  2. Aug 31, 2026 · 19:00 UTC Opening odds snapshot PRE30
    • 1X2 odds · Celta de Vigo II 4.25 · Draw 4.03 · Castellón 1.81
    • Implied 1X2 · Celta de Vigo II 22.7% · Draw 23.9% · Castellón 53.3%
    • Bookmaker · Pinnacle
  3. Aug 31, 2026 · 19:29 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Celta de Vigo II 4.25 · Draw 4.03 · Castellón 1.81
    • Implied 1X2 · Celta de Vigo II 22.7% · Draw 23.9% · Castellón 53.3%
    • Bookmaker · Pinnacle
  4. Aug 31, 2026 · 19:30 UTC Kickoff
  5. FT Full-time result Castellón win · 1–2
  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 (17 pp)
Evidence
  • No strong statistical edge
  • Pricing remains divergent
  • Validation warning
Pricing proximity (inverse gap) 15/100
Betting Confidence 44/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 25, 2026 · 03:35 UTC Snapshot ID: dp-5405544

Closing Odds 1.81
AI Fair Odds
CLV Pending
Final Result Castellón win · Celta de Vigo II 1–2 Castellón
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
  • Fixture: Celta de Vigo II vs Castellón
  • Kickoff: 2026-08-31 19:30:00
  • 1X2 (model): Home 31.4% · Draw 32.3% · Away 36.4%
  • xG (showing): Celta de Vigo II 1.07 — Castellón 1.17 (total xG ≈ 2.24)
  • Value headline: At least one tracked line reaches the headline EV threshold — align with the hero / Primary card if shown.
  • Structural leans (not bets): Structural lean (model): O/U 2.5 Under 2.5 (Under 2.5 61.2% · Over 2.5 38.8%); BTTS No (Yes 47.0% · No 53.0%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS No
  • BTTS (model): Yes 47.0% · No 53.0%
  • Correct score (top bin): 1-1 (13.3%)

When book depth is thin or odds are missing, EV may be unavailable even though the model still prefers one side on totals or BTTS — wait for cleaner prices or skip.

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

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 16, 2026 (UTC)

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Segunda División Segunda DivisiónStandings
# TEAM MP W D L PTS
1 Castellón 5 4 1 0 13
2 Mallorca 5 3 1 1 10
3 Tenerife 5 3 1 1 10
4 Las Palmas 5 3 1 1 10
5 Almeria 5 3 0 2 9
6 Eibar 4 3 0 1 9
7 Oviedo 5 2 2 1 8
8 Burgos 5 2 2 1 8
9 Real Sociedad II 5 2 2 1 8
10 Granada CF 5 2 2 1 8
11 Sabadell 5 2 2 1 8
12 Leganes 5 2 2 1 8
13 Girona 5 2 1 2 7
14 Celta de Vigo II 4 2 1 1 7
15 Sporting Gijon 5 2 1 2 7
16 Eldense 5 1 2 2 5
17 Valladolid 5 1 1 3 4
18 FC Andorra 5 1 0 4 3
19 Cadiz 5 0 3 2 3
20 Cordoba 5 1 0 4 3
21 Albacete 5 0 1 4 1
22 AD Ceuta FC 5 0 0 5 0
# TEAM MP GS GC +/- PTS
1 Girona 5 10 7 +3 7
2 Almeria 5 8 4 +4 9
3 Burgos 5 8 6 +2 8
4 Real Sociedad II 5 8 6 +2 8
5 FC Andorra 5 8 10 -2 3
6 Castellón 5 7 2 +5 13
7 Mallorca 5 7 2 +5 10
8 Tenerife 5 7 3 +4 10
9 Celta de Vigo II 4 7 4 +3 7
10 Las Palmas 5 7 6 +1 10
11 Cordoba 5 7 12 -5 3
12 Eibar 4 6 3 +3 9
13 Granada CF 5 6 5 +1 8
14 Cadiz 5 5 7 -2 3
15 Oviedo 5 4 1 +3 8
16 Sabadell 5 4 4 0 8
17 Leganes 5 3 3 0 8
18 Eldense 5 3 6 -3 5
19 Albacete 5 3 8 -5 1
20 Sporting Gijon 5 2 3 -1 7
21 Valladolid 5 2 7 -5 4
22 AD Ceuta FC 5 2 15 -13 0
# TEAM MP xG xGC +/- PTS
1 Cadiz 5 1.6 0.6 +1.0 3
2 Celta de Vigo II 4 0.6 1.6 -1.0 7
3 Castellón 5 13
4 Mallorca 5 10
5 Tenerife 5 10
6 Las Palmas 5 10
7 Almeria 5 9
8 Eibar 4 9
9 Oviedo 5 8
10 Burgos 5 8
11 Real Sociedad II 5 8
12 Granada CF 5 8
13 Sabadell 5 8
14 Leganes 5 8
15 Girona 5 7
16 Sporting Gijon 5 7
17 Eldense 5 5
18 Valladolid 5 4
19 FC Andorra 5 3
20 Cordoba 5 3
21 Albacete 5 1
22 AD Ceuta FC 5 0