Predictions / Football / Iceland. 1. Deild / Grotta vs Völsungur

Prediction Audit: Grotta vs Völsungur Prediction, Odds & AI Betting Tips

Grotta Grotta
Sep 05, 2026 - 14:00
0 1.32
2 1.28
xG Accuracy: 57%
Völsungur Völsungur

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

The model had projected Grotta at 36.1%, 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 Under 2.5 (2 goals) ✔ Correct
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Grotta Völsungur ✖ Incorrect
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 0-2 ✖ Incorrect

Model vs Closing Market

Moderate Disagreement

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

Largest probability gap: Draw +9.3 pp

Outcome Model Closing Market Difference Signal
Grotta 36.1% 38.6% -2.5 pp Aligned
Draw 29.6% 20.3% +9.3 pp Model Higher
Völsungur 34.2% 41.0% -6.8 pp Market Higher

The statistical model estimates Draw's win probability at 29.6%, compared with the closing market's implied probability of 20.3%, a difference of 9.3 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 Völsungur win 0–2.

Market Assessment

The fair estimate shows a modest edge over current market pricing on Draw.

  • 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 Grotta; match finished Völsungur

Market lesson

The closing market differed from the model on Grotta by 9.3 percentage points (26.8% vs model 36.1%) — 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. Sep 05, 2026 · 14:02 UTC Forecast generated
    • Model 1X2 · Grotta 36.1% · Draw 29.7% · Völsungur 34.2%
    • xG · Grotta 1.32 — Völsungur 1.28
  2. Sep 05, 2026 · 13:34 UTC Opening odds snapshot PRE30
    • 1X2 odds · Grotta 2.40 · Draw 4.57 · Völsungur 2.26
    • Implied 1X2 · Grotta 38.6% · Draw 20.3% · Völsungur 41.0%
    • Bookmaker · Pinnacle
  3. Sep 05, 2026 · 14:02 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Grotta 2.40 · Draw 4.57 · Völsungur 2.26
    • Implied 1X2 · Grotta 38.6% · Draw 20.3% · Völsungur 41.0%
    • Bookmaker · Pinnacle
  4. Sep 05, 2026 · 14:00 UTC Kickoff
  5. FT Full-time result Völsungur win · 0–2
  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 74/100 · High
  • Validation: Pass
Evidence ★★★★★
  • Statistical edge detected
  • Direction agrees with model lean
  • Validation passed
Pricing proximity (inverse gap) 18/100
Monitoring Confidence 33/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 30, 2026 · 02:24 UTC Snapshot ID: dp-6143457

Closing Odds 4.57
AI Fair Odds —
CLV Pending
Final Result Völsungur win · Grotta 0–2 Völsungur
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: 1. Deild
  • Fixture: Grotta vs Völsungur
  • Kickoff: 2026-09-05 14:00:00
  • 1X2 (model): Home 36.1% · Draw 29.7% · Away 34.2%
  • xG (showing): Grotta 1.32 — Völsungur 1.28 (total xG ≈ 2.6)
  • Value headline: None (actionable) — best tracked EV is about +0.1%, 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%)

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.

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 28, 2026 (UTC)

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1. Deild 1. Deild — Standings
# TEAM MP W D L PTS
1 Afturelding 22 14 3 5 45
2 Throttur Reykjavik 22 13 4 5 43
3 Fylkir 22 13 1 8 40
4 HK Kopavogur 22 12 2 8 38
5 Njardvik 22 12 2 8 38
6 Leiknir R. 22 8 4 10 28
7 IR Reykjavik 22 8 4 10 28
8 Grotta 22 8 3 11 27
9 Vestri 22 8 3 11 27
10 Völsungur 22 7 5 10 26
11 Grindavik 22 5 10 7 25
12 Ægir 22 2 3 17 9
# TEAM MP GS GC +/- PTS
1 Afturelding 22 65 33 +32 45
2 HK Kopavogur 22 52 40 +12 38
3 Throttur Reykjavik 22 50 25 +25 43
4 Fylkir 22 49 36 +13 40
5 IR Reykjavik 22 40 46 -6 28
6 Njardvik 22 38 29 +9 38
7 Grotta 22 36 43 -7 27
8 Leiknir R. 22 34 33 +1 28
9 Völsungur 22 32 44 -12 26
10 Vestri 22 30 43 -13 27
11 Grindavik 22 25 35 -10 25
12 Ægir 22 25 69 -44 9