Predictions / Football / Portugal. Segunda Liga / FC Porto B vs Penafiel

Prediction Audit: FC Porto B vs Penafiel Prediction, Odds & AI Betting Tips

Aug 30, 2026 - 17:00
0 1.34
3 1.26
xG Accuracy: 43%

The model missed the final outcome (Penafiel win 0–3).

The model had projected FC Porto B at 37.1%, 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 Over 2.5 (3 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 FC Porto B Penafiel ✖ Incorrect
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 0-3 ✖ Incorrect

Model vs Closing Market

Moderate Disagreement

The closing market prices Penafiel higher than the statistical model.

Largest probability gap: Penafiel -8.9 pp

Outcome Model Closing Market Difference Signal
FC Porto B 37.1% 30.0% +7.1 pp Model Higher
Draw 29.6% 27.8% +1.8 pp Aligned
Penafiel 33.3% 42.2% -8.9 pp Market Higher

The closing market estimates Penafiel's win probability at 42.2%, compared with the model's estimate of 33.3%, a difference of 8.9 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 result was Penafiel win 0–3.

Market Assessment

The market and model broadly agree on Penafiel. The remaining divergence may reflect differences in team-strength assumptions rather than a directional disagreement.

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

Post Match Insights

What worked

  • Expected goals projected a high-scoring match (ΣxG 2.60) — 3 goals materialised

What failed

  • Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (3 goals)

Market lesson

The closing market differed from the model on FC Porto B by 8.9 percentage points (46.0% vs model 37.1%) — 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. Aug 30, 2026 · 17:02 UTC Forecast generated
    • Model 1X2 · FC Porto B 37.0% · Draw 29.6% · Penafiel 33.4%
    • xG · FC Porto B 1.34 — Penafiel 1.26
  2. Aug 30, 2026 · 16:33 UTC Opening odds snapshot PRE30
    • 1X2 odds · FC Porto B 3.18 · Draw 3.43 · Penafiel 2.26
    • Implied 1X2 · FC Porto B 30.0% · Draw 27.8% · Penafiel 42.2%
    • Bookmaker · Pinnacle
  3. Aug 30, 2026 · 17:01 UTC Closing snapshot recorded PRE1
    • 1X2 odds · FC Porto B 3.18 · Draw 3.43 · Penafiel 2.26
    • Implied 1X2 · FC Porto B 30.0% · Draw 27.8% · Penafiel 42.2%
    • Bookmaker · Pinnacle
  4. Aug 30, 2026 · 17:00 UTC Kickoff
  5. FT Full-time result Penafiel win · 0–3
  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 75/100 · High
  • Validation: Pass
Evidence ★★★★★
  • No strong statistical edge
  • Direction agrees with model lean
  • Validation passed
Pricing proximity (inverse gap) 19/100
Monitoring Confidence 33/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 24, 2026 · 02:26 UTC Snapshot ID: dp-5301872

Closing Odds 2.26
AI Fair Odds —
CLV Pending
Final Result Penafiel win · FC Porto B 0–3 Penafiel
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: Segunda Liga
  • Fixture: FC Porto B vs Penafiel
  • Kickoff: 2026-08-30 17:00:00
  • 1X2 (model): Home 37.0% · Draw 29.6% · Away 33.4%
  • xG (showing): FC Porto B 1.34 — Penafiel 1.26 (total xG ≈ 2.6)
  • Value headline: None (actionable) — best tracked EV is about +1.4%, 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.

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 29, 2026 (UTC)

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Segunda Liga Segunda Liga — Standings
# TEAM MP W D L PTS
1 Lusitânia Lourosa 6 5 1 0 16
2 Penafiel 6 4 1 1 13
3 Sporting CP B 6 4 0 2 12
4 Vizela 6 3 2 1 11
5 Benfica B 6 3 1 2 10
6 União de Leiria 6 3 1 2 10
7 Leixoes 6 3 1 2 10
8 Academica 6 3 0 3 9
9 Tondela 6 3 0 3 9
10 Farense 5 2 2 1 8
11 Portimonense 6 2 1 3 7
12 AVS 6 1 3 2 6
13 Felgueiras 1932 6 1 3 2 6
14 Torreense 6 1 3 2 6
15 Amarante 6 1 2 3 5
16 Chaves 5 1 1 3 4
17 FC Porto B 6 1 1 4 4
18 Feirense 6 0 1 5 1
# TEAM MP GS GC +/- PTS
1 Penafiel 6 13 5 +8 13
2 Lusitânia Lourosa 6 11 4 +7 16
3 União de Leiria 6 10 7 +3 10
4 Sporting CP B 6 8 6 +2 12
5 Leixoes 6 8 6 +2 10
6 Academica 6 8 10 -2 9
7 Vizela 6 7 4 +3 11
8 Benfica B 6 7 5 +2 10
9 Farense 5 7 5 +2 8
10 Tondela 6 7 6 +1 9
11 Torreense 6 7 9 -2 6
12 AVS 6 6 6 0 6
13 Felgueiras 1932 6 5 6 -1 6
14 Amarante 6 5 8 -3 5
15 Chaves 5 5 9 -4 4
16 Portimonense 6 4 6 -2 7
17 FC Porto B 6 4 13 -9 4
18 Feirense 6 1 8 -7 1
Segunda Liga Portugal. Segunda Liga Predictions