Predictions / Football / Iceland. 1. Deild / Grotta vs HK Kopavogur

Prediction Audit: Grotta vs HK Kopavogur Prediction, Odds & AI Betting Tips

Grotta Grotta
Jul 03, 2026 - 19:15
2 1.21
1 1.39
xG Accuracy: 72%
HK Kopavogur HK Kopavogur

The model missed the final outcome (Grotta win 2–1).

The model had projected HK Kopavogur at 39.5%, 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 Yes ✔ Correct
  • 1X2 HK Kopavogur Grotta ✖ Incorrect
  • Correct Score Insights 1-1, 0-1, 1-0, 1-2, 2-1 2-1 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices HK Kopavogur higher than the statistical model.

Largest probability gap: HK Kopavogur -13.6 pp

Outcome Model Closing Market Difference Signal
Grotta 31.0% 25.7% +5.3 pp Model Higher
Draw 29.5% 21.2% +8.3 pp Model Higher
HK Kopavogur 39.5% 53.1% -13.6 pp Market Higher

The closing market estimates HK Kopavogur's win probability at 53.1%, compared with the model's estimate of 39.5%, a difference of 13.6 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 Grotta win 2–1.

Market Assessment

The market is materially more optimistic about HK Kopavogur 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

  • Expected goals projected a high-scoring match (ΣxG 2.60) — 3 goals materialised
  • Both Teams To Score (Yes) matched the full-time result
  • Exact score 2–1 fell within the model's highlighted bins

What failed

  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (3 goals)
  • 1X2: model leaned HK Kopavogur; match finished Grotta

Market lesson

The closing market differed from the model on HK Kopavogur by 13.6 percentage points (53.1% vs model 39.5%) — 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. Jul 03, 2026 · 20:09 UTC Forecast generated
    • Model 1X2 · Grotta 31.0% · Draw 29.5% · HK Kopavogur 39.5%
    • xG · Grotta 1.21 — HK Kopavogur 1.39
  2. Jul 03, 2026 · 18:45 UTC Opening odds snapshot PRE30
    • 1X2 odds · Grotta 3.61 · Draw 4.38 · HK Kopavogur 1.75
    • Implied 1X2 · Grotta 25.7% · Draw 21.2% · HK Kopavogur 53.1%
    • Bookmaker · Pinnacle
  3. Jul 03, 2026 · 19:14 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Grotta 3.61 · Draw 4.38 · HK Kopavogur 1.75
    • Implied 1X2 · Grotta 25.7% · Draw 21.2% · HK Kopavogur 53.1%
    • Bookmaker · Pinnacle
  4. Jul 03, 2026 · 19:15 UTC Kickoff
  5. FT Full-time result Grotta win · 2–1
  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: Monitor
Historical Decision Monitor
Outcome Missed
Pre-match metrics (historical context)
Prediction Reliability 56/100 · Moderate
  • Validation: Warning
  • Large market gap (14 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Market has already priced much of the edge
  • Validation warning
Pricing proximity (inverse gap) 31/100
Betting Confidence 44/100

Validation Report

Immutable Snapshot

Prediction Time: Jul 24, 2026 · 00:30 UTC Snapshot ID: dp-1519666

Closing Odds 1.75
AI Fair Odds —
CLV Pending
Final Result Grotta win · Grotta 2–1 HK Kopavogur
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: 1. Deild
  • Fixture: Grotta vs HK Kopavogur
  • Kickoff: 2026-07-03 19:15:00
  • 1X2 (model): Home 31.0% · Draw 29.5% · Away 39.5%
  • xG (showing): Grotta 1.21 — HK Kopavogur 1.39 (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 54.3% · No 45.7%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS Yes
  • BTTS (model): Yes 54.3% · No 45.7%
  • 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.

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

September 30, 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