Predictions / Football / Portugal. Júniores U19 / Vitoria Guimaraes U19 vs Porto U19

Prediction Audit: Vitoria Guimaraes U19 vs Porto U19 Prediction, Odds & AI Betting Tips

Vitoria Guimaraes U19 Vitoria Guimaraes U19
Sep 05, 2026 - 16:00
1 1.10
0 1.50
xG Accuracy: 64%
Porto U19 Porto U19

The model missed the final outcome (Vitoria Guimaraes U19 win 1–0).

The model had projected Porto U19 at 44.8%, 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 (1 goals) ✔ Correct
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Porto U19 Vitoria Guimaraes U19 ✖ Incorrect
  • Correct Score Insights 1-1, 0-1, 1-2, 0-2, 1-0 1-0 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices Porto U19 higher than the statistical model.

Largest probability gap: Porto U19 -15.2 pp

Outcome Model Closing Market Difference Signal
Vitoria Guimaraes U19 26.2% 17.8% +8.4 pp Model Higher
Draw 28.9% 22.2% +6.8 pp Model Higher
Porto U19 44.8% 60.1% -15.2 pp Market Higher

The closing market estimates Porto U19's win probability at 60.1%, compared with the model's estimate of 44.8%, a difference of 15.2 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: PRE5.

After full time, the result was Vitoria Guimaraes U19 win 1–0.

Market Assessment

The market is materially more optimistic about Porto U19 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

  • Under 2.5 goals aligned with the xG profile
  • Exact score 1–0 fell within the model's highlighted bins

What failed

  • Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
  • 1X2: model leaned Porto U19; match finished Vitoria Guimaraes U19

Market lesson

The closing market differed from the model on Porto U19 by 15.2 percentage points (60.0% vs model 44.8%) — in this case the market view proved closer.

Premium betting site stake: New users can use the promo code FHn2uDc1 to receive $100 cash.

Prediction Timeline

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

  1. Sep 05, 2026 · 15:57 UTC Forecast generated
    • Model 1X2 · Vitoria Guimaraes U19 26.2% · Draw 29.0% · Porto U19 44.8%
    • xG · Vitoria Guimaraes U19 1.10 — Porto U19 1.50
  2. Sep 05, 2026 · 15:32 UTC Opening odds snapshot PRE30
    • 1X2 odds · Vitoria Guimaraes U19 5.00 · Draw 4.01 · Porto U19 1.48
    • Implied 1X2 · Vitoria Guimaraes U19 17.8% · Draw 22.2% · Porto U19 60.1%
    • Bookmaker · Pinnacle
  3. Sep 05, 2026 · 15:57 UTC Closing snapshot recorded PRE5
    • 1X2 odds · Vitoria Guimaraes U19 5.00 · Draw 4.01 · Porto U19 1.48
    • Implied 1X2 · Vitoria Guimaraes U19 17.8% · Draw 22.2% · Porto U19 60.1%
    • Bookmaker · Pinnacle
  4. Sep 05, 2026 · 16:00 UTC Kickoff
  5. FT Full-time result Vitoria Guimaraes U19 win · 1–0
  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 55/100 · Moderate
  • Validation: Warning
  • Large market gap (15 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Pricing remains divergent
  • Validation warning
Pricing proximity (inverse gap) 23/100
Betting Confidence 44/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 30, 2026 · 03:43 UTC Snapshot ID: dp-6161346

Closing Odds 1.48
AI Fair Odds —
CLV Pending
Final Result Vitoria Guimaraes U19 win · Vitoria Guimaraes U19 1–0 Porto U19
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

Pre-match snapshot for this fixture.

  • League: Júniores U19
  • Fixture: Vitoria Guimaraes U19 vs Porto U19
  • Kickoff: 2026-09-05 16:00:00
  • 1X2 (model): Home 26.2% · Draw 29.0% · Away 44.8%
  • xG (showing): Vitoria Guimaraes U19 1.1 — Porto U19 1.5 (total xG ≈ 2.6)
  • Value headline: None — no positive EV on tracked lines at current best prices (same as the decision block: 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 53.4% · No 46.6%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS Yes
  • BTTS (model): Yes 53.4% · No 46.6%
  • Correct score (top bin): 1-1 (12.3%)

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.

If lines move materially, re-run generation or refresh — implied probabilities and any future EV readouts will change first.

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

October 01, 2026 (UTC)

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Júniores U19 Júniores U19 — Standings
# TEAM MP W D L PTS
1 Porto U19 6 4 1 1 13
1 Sporting CP U19 6 5 1 0 16
2 Gil Vicente U19 6 3 2 1 11
2 Benfica U19 6 4 2 0 14
3 Sporting Braga U19 6 3 1 2 10
3 Oriental U19 6 3 2 1 11
4 Vitoria Guimaraes U19 6 3 1 2 10
4 Mafra U19 6 2 2 2 8
5 Feirense U19 6 3 1 2 10
5 Torreense U19 6 2 1 3 7
6 Rio Ave U19 6 2 2 2 8
6 Santa Clara U19 4 2 0 2 6
7 Moreirense U19 6 2 1 3 7
7 Casa Pia U19 6 1 2 3 5
8 Famalicão U19 6 1 2 3 5
8 SC Farense U19 5 1 1 3 4
9 Academico Viseu U19 5 1 1 3 4
9 União Leiria U19 6 0 3 3 3
10 Vizela U19 5 1 0 4 3
10 Alverca U19 5 0 2 3 2
# TEAM MP GS GC +/- PTS
1 Benfica U19 6 16 5 +11 14
2 Porto U19 6 13 4 +9 13
3 Sporting CP U19 6 11 3 +8 16
4 Santa Clara U19 4 10 5 +5 6
5 Torreense U19 6 9 9 0 7
6 Oriental U19 6 7 5 +2 11
7 Sporting Braga U19 6 7 5 +2 10
8 Moreirense U19 6 7 9 -2 7
9 Vitoria Guimaraes U19 6 6 6 0 10
10 Alverca U19 5 6 11 -5 2
11 Mafra U19 6 6 12 -6 8
12 Gil Vicente U19 6 5 2 +3 11
13 Rio Ave U19 6 5 4 +1 8
14 Feirense U19 6 5 5 0 10
15 Casa Pia U19 6 5 7 -2 5
16 Famalicão U19 6 5 10 -5 5
17 SC Farense U19 5 5 10 -5 4
18 Vizela U19 5 5 10 -5 3
19 União Leiria U19 6 5 13 -8 3
20 Academico Viseu U19 5 2 5 -3 4
Júniores U19 Portugal. Júniores U19 Predictions