Prediction Audit: Adelaide Olympic vs Modbury Jets Prediction, Odds & AI Betting Tips

Aug 28, 2026 - 10:30
0 1.29
4 1.31
xG Accuracy: 34%

AI correctly predicted the Modbury Jets win.

The match finished 0–4, 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 Under 2.5 Over 2.5 (4 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes No ✖ Incorrect
  • 1X2 Modbury Jets Modbury Jets ✔ Correct
  • Correct Score Insights 1-1, 0-1, 1-0, 1-2, 2-1 0-4 ✖ Incorrect

Model vs Closing Market

Moderate Disagreement

The closing market prices Modbury Jets higher than the statistical model.

Largest probability gap: Modbury Jets -7.7 pp

Outcome Model Closing Market Difference Signal
Adelaide Olympic 34.7% 29.4% +5.3 pp Model Higher
Draw 29.6% 27.3% +2.3 pp Aligned
Modbury Jets 35.6% 43.3% -7.7 pp Market Higher

The closing market estimates Modbury Jets's win probability at 43.3%, compared with the model's estimate of 35.6%, a difference of 7.7 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 (Modbury Jets win 0–4).

Market Assessment

The market and model broadly agree on Modbury Jets. 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 2.60) — 4 goals materialised

What failed

  • Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
  • Over / Under 2.5: model leaned Under 2.5; match finished Over 2.5 (4 goals)

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced Modbury Jets higher (43.2% vs model 35.6%, 7.7 pp), but the model's lean was validated (Modbury Jets win 0–4).

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Prediction Timeline

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

  1. Aug 28, 2026 · 10:29 UTC Forecast generated
    • Model 1X2 · Adelaide Olympic 34.7% · Draw 29.7% · Modbury Jets 35.6%
    • xG · Adelaide Olympic 1.29 — Modbury Jets 1.31
  2. Aug 28, 2026 · 09:59 UTC Opening odds snapshot PRE30
    • 1X2 odds · Adelaide Olympic 3.08 · Draw 3.31 · Modbury Jets 2.09
    • Implied 1X2 · Adelaide Olympic 29.4% · Draw 27.3% · Modbury Jets 43.3%
    • Bookmaker · Pinnacle
  3. Aug 28, 2026 · 10:29 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Adelaide Olympic 3.08 · Draw 3.31 · Modbury Jets 2.09
    • Implied 1X2 · Adelaide Olympic 29.4% · Draw 27.3% · Modbury Jets 43.3%
    • Bookmaker · Pinnacle
  4. Aug 28, 2026 · 10:30 UTC Kickoff
  5. FT Full-time result Modbury Jets win · 0–4
  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 75/100 · High
  • Validation: Pass
Evidence ★★★★★
  • No strong statistical edge
  • Direction agrees with model lean
  • Validation passed
Pricing proximity (inverse gap) 61/100
Betting Confidence 78/100

Validation Report

Immutable Snapshot

Prediction Time: Aug 25, 2026 · 01:41 UTC Snapshot ID: dp-5394688

Closing Odds 2.09
AI Fair Odds —
CLV Pending
Final Result Modbury Jets win · Adelaide Olympic 0–4 Modbury Jets
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

Quick read on how the model reads this matchup.

  • League: South Australia State League 1
  • Fixture: Adelaide Olympic vs Modbury Jets
  • Kickoff: 2026-08-28 10:30:00
  • 1X2 (model): Home 34.7% · Draw 29.7% · Away 35.6%
  • xG (showing): Adelaide Olympic 1.29 — Modbury Jets 1.31 (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 54.5% · 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 (12.6%)

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.

If lines move materially, re-run generation or refresh — implied probabilities and any future EV readouts will change first.

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

September 29, 2026 (UTC)

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South Australia State League 1 South Australia State League 1 — Standings
# TEAM MP W D L PTS
1 Adelaide Raiders 22 15 2 5 47
2 Modbury Jets 22 13 5 4 44
3 Adelaide Olympic 22 14 1 7 43
4 Fulham United 22 11 4 7 37
5 Adelaide Blue Eagles 22 10 6 6 36
6 Adelaide Victory 22 11 3 8 36
7 Cumberland United 22 11 1 10 34
8 The Cove 22 7 5 10 26
9 Eastern United 22 6 4 12 22
10 Adelaide Cobras 22 6 2 14 20
11 Salisbury United 22 5 2 15 17
12 South Adelaide Panthers 22 4 3 15 15
# TEAM MP GS GC +/- PTS
1 Adelaide Raiders 22 56 26 +30 47
2 Modbury Jets 22 46 20 +26 44
3 Adelaide Olympic 22 42 25 +17 43
4 Fulham United 22 42 31 +11 37
5 Adelaide Victory 22 40 34 +6 36
6 Cumberland United 22 36 28 +8 34
7 Adelaide Blue Eagles 22 36 29 +7 36
8 The Cove 22 29 36 -7 26
9 Salisbury United 22 28 48 -20 17
10 South Adelaide Panthers 22 26 62 -36 15
11 Eastern United 22 25 44 -19 22
12 Adelaide Cobras 22 22 45 -23 20