Predictions / Football / Croatia. HNL / Istra 1961 vs NK Slaven Belupo

Prediction Audit: Istra 1961 vs NK Slaven Belupo Prediction, Odds & AI Betting Tips

Istra 1961 Istra 1961
May 04, 2026 - 16:00
3 1.13
1 1.40
xG Accuracy: 54%
NK Slaven Belupo NK Slaven Belupo

The model missed the final outcome (Istra 1961 win 3–1).

The model had projected NK Slaven Belupo at 41.5%, 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 (4 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes Yes ✔ Correct
  • 1X2 NK Slaven Belupo Istra 1961 ✖ Incorrect
  • Correct Score Insights 1-1, 0-1, 1-0, 1-2, 0-0 3-1 ✖ Incorrect

Model vs Closing Market

Moderate Disagreement

The closing market prices Istra 1961 higher than the statistical model.

Largest probability gap: Istra 1961 -8.9 pp

Outcome Model Closing Market Difference Signal
Istra 1961 28.7% 37.6% -8.9 pp Market Higher
Draw 29.8% 28.9% +0.8 pp Aligned
NK Slaven Belupo 41.5% 33.4% +8.1 pp Model Higher

The closing market estimates Istra 1961's win probability at 37.6%, compared with the model's estimate of 28.7%, a difference of 8.9 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 Istra 1961 win 3–1.

Market Assessment

The market and model broadly agree on Istra 1961. The remaining divergence may reflect differences in team-strength assumptions rather than a directional disagreement.

  • Monitor line movement before kickoff — not a betting recommendation.

Post Match Insights

What worked

  • Expected goals projected a high-scoring match (ΣxG 2.53) — 4 goals materialised
  • Both Teams To Score (Yes) matched the full-time result

What failed

  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (4 goals)
  • 1X2: model leaned NK Slaven Belupo; match finished Istra 1961

Market lesson

The closing market differed from the model on NK Slaven Belupo by 8.9 percentage points (50.4% vs model 41.5%) — 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. May 04, 2026 · 15:59 UTC Forecast generated
    • Model 1X2 · Istra 1961 28.7% · Draw 29.8% · NK Slaven Belupo 41.5%
    • xG · Istra 1961 1.13 — NK Slaven Belupo 1.40
  2. May 04, 2026 · 15:29 UTC Opening odds snapshot PRE30
    • 1X2 odds · Istra 1961 2.53 · Draw 3.29 · NK Slaven Belupo 2.85
    • Implied 1X2 · Istra 1961 37.6% · Draw 28.9% · NK Slaven Belupo 33.4%
    • Bookmaker · Pinnacle
  3. May 04, 2026 · 15:59 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Istra 1961 2.53 · Draw 3.29 · NK Slaven Belupo 2.85
    • Implied 1X2 · Istra 1961 37.6% · Draw 28.9% · NK Slaven Belupo 33.4%
    • Bookmaker · Pinnacle
  4. May 04, 2026 · 16:00 UTC Kickoff
  5. FT Full-time result Istra 1961 win · 3–1
  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 75/100 · High
  • Validation: Pass
Evidence ★★★★★
  • No strong statistical edge
  • Direction agrees with model lean
  • Validation passed
Pricing proximity (inverse gap) 19/100
Monitoring Confidence 33/100

Validation Report

Immutable Snapshot

Prediction Time: Jul 24, 2026 · 14:38 UTC Snapshot ID: dp-1606665

Closing Odds 2.53
AI Fair Odds —
CLV Pending
Final Result Istra 1961 win · Istra 1961 3–1 NK Slaven Belupo
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: HNL
  • Fixture: Istra 1961 vs NK Slaven Belupo
  • Kickoff: 2026-05-04 16:00:00
  • 1X2 (model): Home 28.7% · Draw 29.8% · Away 41.5%
  • xG (showing): Istra 1961 1.13 — NK Slaven Belupo 1.4 (total xG ≈ 2.53)
  • Primary / headline line (Betting Primary Pick when shown): BTTS No
  • Model: 47.4% · Implied: 43.2% · Probability edge: +4.2 pts · Est. EV: +7.1%
  • BTTS (model): Yes 52.6% · No 47.4%
  • Correct score (top bin): 1-1 (12.6%)

Where EV is shown, it is estimated return per unit stake at the best tracked decimal price — not the same thing as a raw probability gap.

Early match state can move realised goals away from pre-kick projections.

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 02, 2026 (UTC)

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HNL HNL — Standings
# TEAM MP W D L PTS
1 Dinamo Zagreb 36 27 5 4 86
2 HNK Hajduk Split 36 20 8 8 68
3 NK Varazdin 36 15 9 12 54
4 HNK Rijeka 36 14 11 11 53
5 NK Lokomotiva Zagreb 36 10 14 12 44
6 Istra 1961 36 12 7 17 43
7 NK Slaven Belupo 36 10 11 15 41
8 HNK Gorica 36 11 8 17 41
9 NK Osijek 36 8 11 17 35
10 Vukovar 36 6 10 20 28
# TEAM MP GS GC +/- PTS
1 Dinamo Zagreb 36 93 28 +65 86
2 HNK Hajduk Split 36 61 36 +25 68
3 HNK Rijeka 36 49 36 +13 53
4 NK Varazdin 36 47 46 +1 54
5 NK Slaven Belupo 36 46 61 -15 41
6 HNK Gorica 36 40 48 -8 41
7 NK Lokomotiva Zagreb 36 40 52 -12 44
8 Istra 1961 36 39 50 -11 43
9 Vukovar 36 37 73 -36 28
10 NK Osijek 36 27 49 -22 35
# TEAM MP xG xGC +/- PTS
1 Dinamo Zagreb 36 69.3 25.5 +43.8 86
2 HNK Hajduk Split 36 66.5 36.7 +29.8 68
3 HNK Rijeka 36 50.7 32.0 +18.7 53
4 HNK Gorica 36 38.3 43.4 -5.1 41
5 NK Osijek 36 38.2 43.3 -5.1 35
6 NK Lokomotiva Zagreb 36 41.0 46.5 -5.5 44
7 NK Varazdin 36 36.8 42.5 -5.7 54
8 NK Slaven Belupo 36 35.6 51.7 -16.1 41
9 Vukovar 36 29.1 54.0 -24.9 28
10 Istra 1961 36 31.4 61.4 -30.0 43