Predictions / Football / Portugal. Segunda Liga / Maritimo vs Chaves

Prediction Audit: Maritimo vs Chaves Prediction, Odds & AI Betting Tips

Maritimo Maritimo
May 15, 2026 - 18:00
1 1.25
3 0.95
xG Accuracy: 53%
Chaves Chaves

The model missed the final outcome (Chaves win 1–3).

The model had projected Maritimo at 43.2%, 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 (4 goals) ✖ Incorrect
  • Both Teams To Score BTTS No Yes ✖ Incorrect
  • 1X2 Maritimo Chaves ✖ Incorrect
  • Correct Score Insights 1-0, 1-1, 0-0, 0-1, 2-0 1-3 ✖ Incorrect

Model vs Closing Market

Broadly Aligned

The model and closing market are broadly aligned.

Largest probability gap: Draw +2.6 pp

Outcome Model Closing Market Difference Signal
Maritimo 43.2% 45.0% -1.8 pp Aligned
Draw 28.7% 26.1% +2.6 pp Aligned
Chaves 28.1% 28.9% -0.8 pp Aligned

The model and closing market are broadly aligned, with probability differences below 5 percentage points.

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 Chaves win 1–3.

Market Assessment

The market and model are broadly aligned. Any small pricing gap likely reflects rounding or bookmaker margin, not a structural disagreement.

  • Current pricing remains close to the model baseline.

Post Match Insights

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 (4 goals)

Market lesson

The full-time result was Chaves win 1–3, which did not match the model's pre-match lean on 1X2.

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Prediction Timeline

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

  1. May 17, 2026 · 15:01 UTC Forecast generated
    • Model 1X2 · Maritimo 43.2% · Draw 28.7% · Chaves 28.1%
    • xG · Maritimo 1.25 — Chaves 0.95
  2. May 17, 2026 · 14:30 UTC Opening odds snapshot PRE30
    • 1X2 odds · Maritimo 2.11 · Draw 3.64 · Chaves 3.28
    • Implied 1X2 · Maritimo 45.0% · Draw 26.1% · Chaves 28.9%
    • Bookmaker · Pinnacle
  3. May 17, 2026 · 15:01 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Maritimo 2.11 · Draw 3.64 · Chaves 3.28
    • Implied 1X2 · Maritimo 45.0% · Draw 26.1% · Chaves 28.9%
    • Bookmaker · Pinnacle
  4. May 15, 2026 · 18:00 UTC Kickoff
  5. FT Full-time result Chaves win · 1–3
  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: Observe
Historical Decision No Primary Bet
Outcome Missed
Pre-match metrics (historical context)
Prediction Reliability 78/100 · High
  • Validation: Pass
Evidence ★★★★★
  • No strong statistical edge
  • Direction agrees with model lean
  • Validation passed
Market Compatibility 86/100
Betting Confidence 81/100

Validation Report

Immutable Snapshot

Prediction Time: Jul 23, 2026 · 17:39 UTC Snapshot ID: dp-1480485

Closing Odds 3.64
AI Fair Odds —
CLV Pending
Final Result Chaves win · Maritimo 1–3 Chaves
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

Quick read on how the model reads this matchup.

  • League: Segunda Liga
  • Fixture: Maritimo vs Chaves
  • Kickoff: 2026-05-17 15:00:00
  • 1X2 (model): Home 43.2% · Draw 28.7% · Away 28.1%
  • xG (showing): Maritimo 1.25 — Chaves 0.95 (total xG ≈ 2.2)
  • Primary / headline line (Betting Primary Pick when shown): Under 2.5 goals
  • Model: 58.3% · Implied: 45.4% · Probability edge: +12.9 pts · Est. EV: +24.2%
  • BTTS (model): Yes 57.0% · No 43.0%
  • Correct score (top bin): 1-0 (12.9%)

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: 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

October 03, 2026 (UTC)

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Segunda Liga Segunda Liga — Standings
# TEAM MP W D L PTS
1 Maritimo 34 20 6 8 66
2 Academico Viseu 34 17 8 9 59
3 Torreense 34 18 5 11 59
4 Vizela 34 14 9 11 51
5 FC Porto B 34 15 6 13 51
6 União de Leiria 34 13 11 10 50
7 Leixoes 34 15 5 14 50
8 Feirense 34 12 10 12 46
9 Chaves 34 13 6 15 45
10 Benfica B 34 11 11 12 44
11 Felgueiras 1932 34 11 11 12 44
12 Lusitânia Lourosa 34 11 10 13 43
13 Sporting CP B 34 13 3 18 42
14 Penafiel 34 11 8 15 41
15 Portimonense 34 11 7 16 40
16 Farense 34 10 10 14 40
17 Pacos Ferreira 34 9 12 13 39
18 Oliveirense 34 8 10 16 34
# TEAM MP GS GC +/- PTS
1 Academico Viseu 34 58 33 +25 59
2 União de Leiria 34 52 46 +6 50
3 Maritimo 34 50 29 +21 66
4 Torreense 34 46 33 +13 59
5 Leixoes 34 46 55 -9 50
6 Lusitânia Lourosa 34 44 52 -8 43
7 Benfica B 34 43 44 -1 44
8 Chaves 34 42 40 +2 45
9 Sporting CP B 34 41 34 +7 42
10 FC Porto B 34 41 42 -1 51
11 Vizela 34 39 40 -1 51
12 Portimonense 34 39 49 -10 40
13 Penafiel 34 37 39 -2 41
14 Feirense 34 37 40 -3 46
15 Felgueiras 1932 34 34 38 -4 44
16 Pacos Ferreira 34 34 48 -14 39
17 Oliveirense 34 34 49 -15 34
18 Farense 34 31 37 -6 40
# TEAM MP xG xGC +/- PTS
1 Maritimo 34 9.6 5.5 +4.1 66
2 Chaves 34 7.5 4.3 +3.2 45
3 Academico Viseu 34 8.5 6.2 +2.3 59
4 Feirense 34 2.9 1.1 +1.8 46
5 Leixoes 34 7.9 7.1 +0.8 50
6 Portimonense 34 6.2 5.4 +0.8 40
7 Benfica B 34 4.1 3.5 +0.6 44
8 Felgueiras 1932 34 7.2 6.7 +0.5 44
9 União de Leiria 34 8.6 8.2 +0.4 50
10 Sporting CP B 34 3.6 3.2 +0.4 42
11 Farense 34 3.8 4.2 -0.4 40
12 Lusitânia Lourosa 34 7.6 8.5 -0.9 43
13 Vizela 34 3.1 4.4 -1.3 51
14 Oliveirense 34 6.8 8.7 -1.9 34
15 Torreense 34 3.1 5.0 -1.9 59
16 Penafiel 34 4.7 7.3 -2.6 41
17 FC Porto B 34 4.0 6.7 -2.7 51
18 Pacos Ferreira 34 4.0 7.3 -3.3 39
Segunda Liga Portugal. Segunda Liga Predictions