Predictions / Football / Costa-Rica. Primera División / CS Cartagines vs Inter San Carlos

Prediction Audit: CS Cartagines vs Inter San Carlos Prediction, Odds & AI Betting Tips

Jul 25, 2026 - 23:00
3 1.38
1 1.22
xG Accuracy: 60%

AI correctly predicted the CS Cartagines win.

The match finished 3–1, 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 (4 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes Yes ✔ Correct
  • 1X2 CS Cartagines CS Cartagines ✔ Correct
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 3-1 ✖ Incorrect

Model vs Closing Market

Strong Disagreement

The closing market prices CS Cartagines higher than the statistical model.

Largest probability gap: CS Cartagines -14.6 pp

Outcome Model Closing Market Difference Signal
CS Cartagines 44.6% 59.1% -14.6 pp Market Higher
Draw 28.5% 24.4% +4.1 pp Aligned
Inter San Carlos 26.9% 16.5% +10.4 pp Model Edge

The closing market estimates CS Cartagines's win probability at 59.1%, compared with the model's estimate of 44.6%, a difference of 14.6 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 (CS Cartagines win 3–1).

Market Assessment

The market is materially more optimistic about CS Cartagines 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) — 4 goals materialised
  • Both Teams To Score (Yes) matched the full-time result

What failed

  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (4 goals)
  • Exact score: outside the model's top score bins

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced CS Cartagines higher (59.2% vs model 44.6%, 14.6 pp), but the model's lean was validated (CS Cartagines win 3–1).

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Prediction Timeline

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

  1. Jul 25, 2026 · 23:44 UTC Forecast generated
    • Model 1X2 · CS Cartagines 44.6% · Draw 28.5% · Inter San Carlos 26.9%
    • xG · CS Cartagines 1.38 — Inter San Carlos 1.22
  2. Jul 25, 2026 · 22:31 UTC Opening odds snapshot PRE30
    • 1X2 odds · CS Cartagines 1.60 · Draw 3.88 · Inter San Carlos 5.75
    • Implied 1X2 · CS Cartagines 59.1% · Draw 24.4% · Inter San Carlos 16.5%
    • Bookmaker · Pinnacle
  3. Jul 25, 2026 · 23:01 UTC Closing snapshot recorded PRE1
    • 1X2 odds · CS Cartagines 1.60 · Draw 3.88 · Inter San Carlos 5.75
    • Implied 1X2 · CS Cartagines 59.1% · Draw 24.4% · Inter San Carlos 16.5%
    • Bookmaker · Pinnacle
  4. Jul 25, 2026 · 23:00 UTC Kickoff
  5. FT Full-time result CS Cartagines win · 3–1
  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 56/100 · Moderate
  • Validation: Warning
  • Large market gap (15 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Market has already priced much of the edge
  • Validation warning
Pricing proximity (inverse gap) 27/100
Betting Confidence 44/100

Validation Report

Immutable Snapshot

Prediction Time: Jul 23, 2026 · 14:11 UTC Snapshot ID: dp-1457109

Closing Odds 1.6
AI Fair Odds —
CLV Pending
Final Result CS Cartagines win · CS Cartagines 3–1 Inter San Carlos
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

Quick read on how the model reads this matchup.

  • League: Primera División Costa Rica
  • Fixture: CS Cartagines vs Inter San Carlos
  • Kickoff: 2026-07-25 23:00:00
  • 1X2 (model): Home 44.6% · Draw 28.5% · Away 26.9%
  • xG (showing): CS Cartagines 1.38 — Inter San Carlos 1.22 (total xG ≈ 2.6)
  • 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 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%)

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.

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 Primera División — Standings
# TEAM MP W D L PTS
1 Deportivo Saprissa 9 7 0 2 21
2 CS Cartagines 9 6 0 3 18
3 Sporting San Jose 9 5 2 2 17
4 San Carlos 9 5 0 4 15
5 LD Alajuelense 9 4 2 3 14
6 Inter San Carlos 9 4 2 3 14
7 Puntarenas FC 9 3 2 4 11
8 Perez Zeledon 9 2 2 5 8
9 CS Herediano 9 2 1 6 7
10 Escorpiones Belén 9 1 1 7 4
# TEAM MP GS GC +/- PTS
1 Deportivo Saprissa 9 20 10 +10 21
2 CS Cartagines 9 18 10 +8 18
3 Sporting San Jose 9 16 8 +8 17
4 LD Alajuelense 9 15 10 +5 14
5 Inter San Carlos 9 9 12 -3 14
6 San Carlos 9 8 9 -1 15
7 Puntarenas FC 9 8 13 -5 11
8 CS Herediano 9 8 14 -6 7
9 Perez Zeledon 9 7 14 -7 8
10 Escorpiones Belén 9 6 15 -9 4