Predictions / Football / Japan. J2 League / Albirex Niigata vs Montedio Yamagata

Prediction Audit: Albirex Niigata vs Montedio Yamagata Prediction, Odds & AI Betting Tips

Albirex Niigata Albirex Niigata
Sep 13, 2026 - 09:00
1 1.30
0 1.30
xG Accuracy: 64%
Montedio Yamagata Montedio Yamagata

AI correctly predicted the Albirex Niigata win.

The match finished 1–0, validating the model's directional assessment.

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 Over 2.5 Under 2.5 (1 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Albirex Niigata Albirex Niigata ✔ Correct
  • Correct Score Insights 1-1, 0-1, 1-0, 1-2, 2-1 1-0 ✔ Correct

Model vs Closing Market

Moderate Disagreement

The closing market prices Albirex Niigata higher than the statistical model.

Largest probability gap: Albirex Niigata -5.8 pp

Outcome Model Closing Market Difference Signal
Albirex Niigata 35.2% 41.0% -5.8 pp Market Higher
Draw 29.6% 27.1% +2.6 pp Aligned
Montedio Yamagata 35.2% 31.9% +3.2 pp Aligned

The closing market estimates Albirex Niigata's win probability at 41.0%, compared with the model's estimate of 35.2%, a difference of 5.8 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 model's directional lean matched the result (Albirex Niigata win 1–0).

Market Assessment

The market and model broadly agree on Albirex Niigata. 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

  • 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
  • Over / Under 2.5: model leaned Over 2.5; match finished Under 2.5 (1 goals)

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced Albirex Niigata higher (41.0% vs model 35.2%, 5.8 pp), but the model's lean was validated (Albirex Niigata win 1–0).

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Prediction Timeline

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

  1. Sep 13, 2026 · 08:59 UTC Forecast generated
    • Model 1X2 · Albirex Niigata 35.2% · Draw 29.6% · Montedio Yamagata 35.2%
    • xG · Albirex Niigata 1.30 — Montedio Yamagata 1.30
  2. Sep 13, 2026 · 08:29 UTC Opening odds snapshot PRE30
    • 1X2 odds · Albirex Niigata 2.29 · Draw 3.47 · Montedio Yamagata 2.94
    • Implied 1X2 · Albirex Niigata 41.0% · Draw 27.1% · Montedio Yamagata 31.9%
    • Bookmaker · Pinnacle
  3. Sep 13, 2026 · 08:59 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Albirex Niigata 2.29 · Draw 3.47 · Montedio Yamagata 2.94
    • Implied 1X2 · Albirex Niigata 41.0% · Draw 27.1% · Montedio Yamagata 31.9%
    • Bookmaker · Pinnacle
  4. Sep 13, 2026 · 09:00 UTC Kickoff
  5. FT Full-time result Albirex Niigata win · 1–0
  6. FT Prediction validated Directional lean matched full-time result
  7. Archived Prediction review

Historical Snapshot

Frozen at kickoff — the model output as it stood before the match started.

Historical verdict: Observe
Historical Decision No Primary Bet
Outcome Validated
Pre-match metrics (historical context)
Prediction Reliability 76/100 · High
  • Validation: Pass
Evidence ★★★★★
  • No strong statistical edge
  • Direction agrees with model lean
  • Validation passed
Market Compatibility 70/100
Betting Confidence 79/100

Validation Report

Immutable Snapshot

Prediction Time: Sep 07, 2026 · 00:56 UTC Snapshot ID: dp-7421709

Closing Odds 2.29
AI Fair Odds —
CLV Pending
Final Result Albirex Niigata win · Albirex Niigata 1–0 Montedio Yamagata
Prediction ✔ Correct
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: J2 League
  • Fixture: Albirex Niigata vs Montedio Yamagata
  • Kickoff: 2026-09-13 09:00:00
  • 1X2 (model): Home 35.2% · Draw 29.6% · Away 35.2%
  • xG (showing): Albirex Niigata 1.3 — Montedio Yamagata 1.3 (total xG ≈ 2.6)
  • Value headline: None (actionable) — best tracked EV is about +1.2%, 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 Over 2.5; BTTS Yes
  • BTTS (model): Yes 54.5% · No 45.5%
  • Correct score (top bin): 1-1 (12.6%)

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.

Most likely correct score stays a low-probability tail: use it for context, not as a must-bet story.

Historical Recommendation

Historical Decision: No Primary Bet

Outcome: Validated — Pre-match lean validated against 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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J2 League J2 League — Standings
# TEAM MP W D L PTS
1 Vegalta Sendai 8 5 2 1 17
2 Omiya Ardija 8 4 4 0 16
3 Albirex Niigata 8 5 1 2 16
4 Shonan Bellmare 8 4 3 1 15
5 Kataller Toyama 8 4 2 2 14
6 Yokohama FC 8 4 2 2 14
7 Tokushima Vortis 8 4 1 3 13
8 Montedio Yamagata 8 4 0 4 12
9 Fujieda MYFC 8 3 3 2 12
10 Tegevajaro Miyazaki 8 3 2 3 11
11 Tochigi City 8 3 1 4 10
12 Blaublitz Akita 8 2 4 2 10
13 Jubilo Iwata 8 3 1 4 10
14 Vanraure Hachinohe 8 3 1 4 10
15 Iwaki 8 3 0 5 9
16 Oita Trinita 8 1 5 2 8
17 Sagan Tosu 8 2 2 4 8
18 Ventforet Kofu 8 2 1 5 7
19 Consadole Sapporo 8 1 2 5 5
20 Imabari 8 1 1 6 4
# TEAM MP GS GC +/- PTS
1 Omiya Ardija 8 16 7 +9 16
2 Kataller Toyama 8 16 8 +8 14
3 Yokohama FC 8 16 11 +5 14
4 Vegalta Sendai 8 15 7 +8 17
5 Tochigi City 8 14 13 +1 10
6 Fujieda MYFC 8 12 9 +3 12
7 Tegevajaro Miyazaki 8 12 12 0 11
8 Blaublitz Akita 8 11 10 +1 10
9 Albirex Niigata 8 11 12 -1 16
10 Iwaki 8 11 15 -4 9
11 Montedio Yamagata 8 10 6 +4 12
12 Jubilo Iwata 8 10 11 -1 10
13 Consadole Sapporo 8 10 17 -7 5
14 Shonan Bellmare 8 9 7 +2 15
15 Tokushima Vortis 8 8 8 0 13
16 Sagan Tosu 8 8 11 -3 8
17 Oita Trinita 8 7 6 +1 8
18 Imabari 8 7 17 -10 4
19 Ventforet Kofu 8 6 15 -9 7
20 Vanraure Hachinohe 8 5 12 -7 10
J2 League Japan. J2 League Predictions