Predictions / Football / El-Salvador. Primera Division / Isidro Metapán vs Alianza

Prediction Audit: Isidro Metapán vs Alianza Prediction, Odds & AI Betting Tips

Aug 23, 2026 - 00:00
2 1.25
0 1.35
xG Accuracy: 56%

The model missed the final outcome (Isidro Metapán win 2–0).

The model had projected Alianza at 37.5%, 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 (2 goals) ✔ Correct
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Alianza Isidro Metapán ✖ Incorrect
  • Correct Score Insights 1-1, 0-1, 1-0, 1-2, 2-1 2-0 ✖ Incorrect

Model vs Closing Market

Strong Disagreement

The model rates Alianza considerably stronger than the closing betting market.

Largest probability gap: Alianza +10.8 pp

Outcome Model Closing Market Difference Signal
Isidro Metapán 32.9% 42.6% -9.7 pp Market Higher
Draw 29.6% 30.6% -1.0 pp Aligned
Alianza 37.5% 26.8% +10.8 pp Model Edge

The statistical model estimates Alianza's win probability at 37.5%, compared with the closing market's implied probability of 26.8%, a difference of 10.8 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: PRE1.

After full time, the result was Isidro Metapán win 2–0.

Market Assessment

The statistical fair estimate is materially higher than the market on Alianza.

  • The model may see a slower-scoring or closer matchup than the market.
  • Monitor line movement before kickoff — not a betting recommendation.

Post Match Insights

What worked

  • Under 2.5 goals aligned with the xG profile

What failed

  • Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
  • 1X2: model leaned Alianza; match finished Isidro Metapán

Market lesson

The closing market differed from the model on Alianza by 10.8 percentage points (26.7% vs model 37.5%) — 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. Aug 22, 2026 · 23:59 UTC Forecast generated
    • Model 1X2 · Isidro Metapán 32.9% · Draw 29.6% · Alianza 37.6%
    • xG · Isidro Metapán 1.25 — Alianza 1.35
  2. Aug 22, 2026 · 23:31 UTC Opening odds snapshot PRE30
    • 1X2 odds · Isidro Metapán 2.15 · Draw 2.99 · Alianza 3.42
    • Implied 1X2 · Isidro Metapán 42.6% · Draw 30.6% · Alianza 26.8%
    • Bookmaker · Pinnacle
  3. Aug 22, 2026 · 23:59 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Isidro Metapán 2.15 · Draw 2.99 · Alianza 3.42
    • Implied 1X2 · Isidro Metapán 42.6% · Draw 30.6% · Alianza 26.8%
    • Bookmaker · Pinnacle
  4. Aug 23, 2026 · 00:00 UTC Kickoff
  5. FT Full-time result Isidro Metapán win · 2–0
  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 58/100 · Moderate
  • Validation: Warning
  • Large market gap (11 pp)
Evidence ★★★★★
  • Statistical edge detected
  • Market has already priced much of the edge
  • Validation warning
Pricing proximity (inverse gap) 16/100
Monitoring Confidence 20/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 17, 2026 · 00:44 UTC Snapshot ID: dp-4356151

Closing Odds 3.42
AI Fair Odds —
CLV Pending
Final Result Isidro Metapán win · Isidro Metapán 2–0 Alianza
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

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

  • League: Primera Division
  • Fixture: Isidro Metapán vs Alianza
  • Kickoff: 2026-08-23 00:00:00
  • 1X2 (model): Home 32.9% · Draw 29.6% · Away 37.6%
  • xG (showing): Isidro Metapán 1.25 — Alianza 1.35 (total xG ≈ 2.6)
  • Value headline: None (actionable) — best tracked EV is about +0.9%, 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%)

The decision block shows no default Primary: Primary needs consensus EV ≥ +5.0% plus strength/reliability/calibration gates. A separate Lean/tracked gate is +2.0% (selective only). Lean labels are directional only — not bankroll-sized recommendations.

Most likely correct score stays a low-probability tail: use it for context, not as a must-bet story.

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 30, 2026 (UTC)

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Primera Division Primera Division — Standings
# TEAM MP W D L PTS
1 FAS 10 6 2 2 20
2 Inter 11 5 5 1 20
3 Isidro Metapán 11 6 2 3 20
4 Firpo 10 5 3 2 18
5 Municipal Limeño 11 5 2 4 17
6 Águila 11 3 5 3 14
7 Alianza 9 3 4 2 13
8 Atletico Balboa 11 3 3 5 12
9 Platense 11 3 3 5 12
10 Inca Aruba 11 3 2 6 11
11 Cacahuatique 11 1 5 5 8
12 Fuerte San Francisco 11 1 4 6 7
# TEAM MP GS GC +/- PTS
1 FAS 10 18 9 +9 20
2 Firpo 10 16 7 +9 18
3 Inter 11 16 8 +8 20
4 Municipal Limeño 11 16 12 +4 17
5 Águila 11 16 14 +2 14
6 Isidro Metapán 11 15 10 +5 20
7 Alianza 9 14 13 +1 13
8 Atletico Balboa 11 12 16 -4 12
9 Platense 11 12 16 -4 12
10 Cacahuatique 11 11 18 -7 8
11 Fuerte San Francisco 11 8 19 -11 7
12 Inca Aruba 11 8 20 -12 11