Predictions / Football / Portugal. Primeira Liga / Casa Pia vs Rio Ave

Prediction Audit: Casa Pia vs Rio Ave Prediction, Odds & AI Betting Tips

Casa Pia Casa Pia
May 16, 2026 - 17:00
1 0.91
1 1.26
xG Accuracy: 91%
Rio Ave Rio Ave

The model missed the final outcome (Draw 1–1).

The model had projected Rio Ave at 42.7%, 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 No Yes ✖ Incorrect
  • 1X2 Rio Ave Draw ✖ Incorrect
  • Correct Score Insights 0-1, 1-1, 0-0, 1-0, 0-2 1-1 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices Casa Pia higher than the statistical model.

Largest probability gap: Casa Pia -28.5 pp

Outcome Model Closing Market Difference Signal
Casa Pia 25.1% 53.6% -28.5 pp Market Higher
Draw 32.2% 25.2% +7.0 pp Model Higher
Rio Ave 42.7% 21.3% +21.5 pp Model Edge

The closing market estimates Casa Pia's win probability at 53.6%, compared with the model's estimate of 25.1%, a difference of 28.5 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 Draw 1–1.

Post Match Insights

What worked

  • Low-scoring profile materialised (ΣxG 2.17, 2 goals)
  • Under 2.5 goals aligned with the xG profile
  • Exact score 1–1 fell within the model's highlighted bins

What failed

  • Both Teams To Score: model leaned BTTS No; match finished BTTS Yes
  • 1X2: model leaned Rio Ave; match finished Draw

Market lesson

The closing market differed from the model on Rio Ave by 28.5 percentage points (71.2% vs model 42.7%) — 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. May 17, 2026 · 15:59 UTC Forecast generated
    • Model 1X2 · Casa Pia 25.1% · Draw 32.1% · Rio Ave 42.7%
    • xG · Casa Pia 0.91 — Rio Ave 1.26
  2. May 17, 2026 · 15:29 UTC Opening odds snapshot PRE30
    • 1X2 odds · Casa Pia 1.79 · Draw 3.81 · Rio Ave 4.51
    • Implied 1X2 · Casa Pia 53.6% · Draw 25.2% · Rio Ave 21.3%
    • Bookmaker · Pinnacle
  3. May 17, 2026 · 15:59 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Casa Pia 1.79 · Draw 3.81 · Rio Ave 4.51
    • Implied 1X2 · Casa Pia 53.6% · Draw 25.2% · Rio Ave 21.3%
    • Bookmaker · Pinnacle
  4. May 16, 2026 · 17:00 UTC Kickoff
  5. FT Full-time result Draw · 1–1
  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: Cautious / Wait

Historical label: Originally displayed as "Wait for validation".

Historical Decision Wait
Outcome Missed
Pre-match metrics (historical context)
Prediction Reliability 49/100 · Moderate
  • Validation: Warning
  • Large market gap (28 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Market strongly disagrees on price
  • Validation warning
Pricing proximity (inverse gap) 0/100
Monitoring Confidence 13/100

Validation Report

Immutable Snapshot

Prediction Time: Jul 24, 2026 · 05:37 UTC Snapshot ID: dp-1555625

Closing Odds 1.79
AI Fair Odds 2.34
CLV Pending
Final Result Draw · Casa Pia 1–1 Rio Ave
Prediction ✖ Missed
Decision Grade F

Probability Calibration

  • Expected: 42.7%
  • Historical Bucket: 40–45% — Actual 0.0% (n=3)

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

Pre-match snapshot for this fixture.

  • League: Primeira Liga
  • Fixture: Casa Pia vs Rio Ave
  • Kickoff: 2026-05-17 16:00:00
  • 1X2 (model): Home 25.1% · Draw 32.1% · Away 42.7%
  • xG (showing): Casa Pia 0.91 — Rio Ave 1.26 (total xG ≈ 2.17)
  • Primary / headline line (Betting Primary Pick when shown): Under 2.5 goals
  • Model: 63.1% · Implied: 50.0% · Probability edge: +13.1 pts · Est. EV: +26.2%
  • BTTS (model): Yes 44.5% · No 55.5%
  • Correct score (top bin): 0-1 (14.4%)

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: Wait

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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Primeira Liga Primeira Liga — Standings
# TEAM MP W D L PTS
1 FC Porto 34 28 4 2 88
2 Sporting CP 34 25 7 2 82
3 Benfica 34 23 11 0 80
4 SC Braga 34 16 11 7 59
5 Famalicao 34 15 11 8 56
6 GIL Vicente 34 13 11 10 50
7 Moreirense 34 12 7 15 43
8 Arouca 34 12 6 16 42
9 Guimaraes 34 12 6 16 42
10 Estoril 34 10 9 15 39
11 Alverca 34 10 9 15 39
12 Rio Ave 34 8 12 14 36
13 Santa Clara 34 9 9 16 36
14 Nacional 34 9 7 18 34
15 Estrela 34 6 12 16 30
16 Casa Pia 34 6 12 16 30
17 Tondela 34 6 10 18 28
18 AVS 34 3 12 19 21
# TEAM MP GS GC +/- PTS
1 Sporting CP 34 89 24 +65 82
2 Benfica 34 74 25 +49 80
3 FC Porto 34 66 18 +48 88
4 SC Braga 34 64 36 +28 59
5 Estoril 34 54 57 -3 39
6 GIL Vicente 34 47 38 +9 50
7 Arouca 34 47 64 -17 42
8 Famalicao 34 42 29 +13 56
9 Guimaraes 34 39 51 -12 42
10 Estrela 34 38 56 -18 30
11 Nacional 34 37 45 -8 34
12 Moreirense 34 37 49 -12 43
13 Alverca 34 35 52 -17 39
14 Rio Ave 34 35 57 -22 36
15 Santa Clara 34 32 41 -9 36
16 Casa Pia 34 31 57 -26 30
17 Tondela 34 27 55 -28 28
18 AVS 34 27 67 -40 21
# TEAM MP xG xGC +/- PTS
1 Sporting CP 34 69.0 23.9 +45.1 82
2 Benfica 34 68.4 27.3 +41.1 80
3 FC Porto 34 62.1 22.5 +39.6 88
4 SC Braga 34 57.3 37.3 +20.0 59
5 Famalicao 34 45.6 33.7 +11.9 56
6 GIL Vicente 34 44.9 36.8 +8.1 50
7 Santa Clara 34 36.4 35.2 +1.2 36
8 Alverca 34 40.5 40.1 +0.4 39
9 Guimaraes 34 39.3 45.4 -6.1 42
10 Tondela 34 36.6 48.7 -12.1 28
11 Estoril 34 42.8 55.2 -12.4 39
12 Nacional 34 37.9 50.6 -12.7 34
13 Estrela 34 40.7 53.6 -12.9 30
14 Rio Ave 34 34.2 52.3 -18.1 36
15 Arouca 34 30.8 49.4 -18.6 42
16 Moreirense 34 31.3 51.7 -20.4 43
17 Casa Pia 34 31.6 54.8 -23.2 30
18 AVS 34 31.9 62.6 -30.7 21