Predictions / Football / Scotland. Challenge Cup / Airdrie United vs St. Mirren U21

Prediction Audit: Airdrie United vs St. Mirren U21 Prediction, Odds & AI Betting Tips

Airdrie United Airdrie United
Sep 08, 2026 - 18:45
1 1.37
0 1.23
xG Accuracy: 64%
St. Mirren U21 St. Mirren U21

AI correctly predicted the Airdrie United win.

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

Tracked markets vs full-time result

Prediction grade A

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 No No ✔ Correct
  • 1X2 Airdrie United Airdrie United ✔ Correct
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 1-0 ✔ Correct

Model vs Closing Market

Strong Disagreement

The closing market prices Airdrie United higher than the statistical model.

Largest probability gap: Airdrie United -22.5 pp

Outcome Model Closing Market Difference Signal
Airdrie United 38.5% 61.0% -22.5 pp Market Higher
Draw 29.6% 19.6% +10.0 pp Model Higher
St. Mirren U21 31.9% 19.4% +12.5 pp Model Edge

The closing market estimates Airdrie United's win probability at 61.0%, compared with the model's estimate of 38.5%, a difference of 22.5 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 (Airdrie United win 1–0).

Post Match Insights

What worked

  • Both Teams To Score (No) matched the full-time result
  • Under 2.5 goals aligned with the xG profile
  • Exact score 1–0 fell within the model's highlighted bins

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced Airdrie United higher (61.0% vs model 38.5%, 22.5 pp), but the model's lean was validated (Airdrie United win 1–0).

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Prediction Timeline

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

  1. Sep 08, 2026 · 18:47 UTC Forecast generated
    • Model 1X2 · Airdrie United 38.5% · Draw 29.6% · St. Mirren U21 31.9%
    • xG · Airdrie United 1.37 — St. Mirren U21 1.23
  2. Sep 08, 2026 · 18:16 UTC Opening odds snapshot PRE30
    • 1X2 odds · Airdrie United 1.48 · Draw 4.61 · St. Mirren U21 4.65
    • Implied 1X2 · Airdrie United 61.0% · Draw 19.6% · St. Mirren U21 19.4%
    • Bookmaker · Pinnacle
  3. Sep 08, 2026 · 18:47 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Airdrie United 1.48 · Draw 4.61 · St. Mirren U21 4.65
    • Implied 1X2 · Airdrie United 61.0% · Draw 19.6% · St. Mirren U21 19.4%
    • Bookmaker · Pinnacle
  4. Sep 08, 2026 · 18:45 UTC Kickoff
  5. FT Full-time result Airdrie United 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: Cautious / Wait

Historical label: Originally displayed as "Wait for validation".

Historical Decision Wait
Outcome Validated
Pre-match metrics (historical context)
Prediction Reliability 52/100 · Moderate
  • Validation: Warning
  • Large market gap (23 pp)
Evidence ★★★★★
  • No strong statistical edge
  • Pricing remains divergent
  • Validation warning
Pricing proximity (inverse gap) 0/100
Betting Confidence 33/100

Validation Report

Immutable Snapshot

Prediction Time: Sep 02, 2026 · 02:32 UTC Snapshot ID: dp-6581591

Closing Odds 1.48
AI Fair Odds —
CLV Pending
Final Result Airdrie United win · Airdrie United 1–0 St. Mirren U21
Prediction ✔ Correct
Decision Grade A

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: Challenge Cup
  • Fixture: Airdrie United vs St. Mirren U21
  • Kickoff: 2026-09-08 18:45:00
  • 1X2 (model): Home 38.5% · Draw 29.6% · Away 31.9%
  • xG (showing): Airdrie United 1.37 — St. Mirren U21 1.23 (total xG ≈ 2.6)
  • Value headline: At least one tracked line reaches the headline EV threshold — align with the hero / Primary card if shown.
  • 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 No (Yes 54.4% · No 45.6%) Value lean (pricing): O/U 2.5 Under 2.5; BTTS No
  • BTTS (model): Yes 54.4% · No 45.6%
  • Correct score (top bin): 1-1 (12.5%)

The decision block shows no default Primary: Primary needs consensus EV ≥ +5.0% plus strength/reliability/calibration gates. A separate Lean/tracked gate is +2.0% (selective only). Lean labels are directional only — not bankroll-sized recommendations.

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

Historical Recommendation

Historical Decision: Wait

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

September 30, 2026 (UTC)

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