Prediction Audit: Changchun Xidu vs Shanghai Port II Prediction, Odds & AI Betting Tips

Changchun Xidu

Jul 18, 2026 - 08:00

0 1.29

2 1.31

xG Accuracy: 58%

Shanghai Port II

AI correctly predicted the Shanghai Port II win.

The match finished 0–2, validating the model's directional assessment.

Tracked markets vs full-time result

Prediction grade B-

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 (2 goals) ✔ Correct
Both Teams To Score BTTS Yes No ✖ Incorrect
1X2 Shanghai Port II Shanghai Port II ✔ Correct
Correct Score Insights 1-1, 0-1, 1-0, 1-2, 2-1 0-2 ✖ Incorrect

Model vs Closing Market

Outcome	Model	Closing Market	Difference	Signal
Changchun Xidu	34.7%	21.1%	+13.6 pp	Model Edge
Draw	29.6%	31.4%	-1.7 pp	Aligned
Shanghai Port II	35.6%	47.6%	-11.9 pp	Market Higher

The statistical model estimates Changchun Xidu's win probability at 34.7%, compared with the closing market's implied probability of 21.1%, a difference of 13.6 percentage points. This highlights a substantial disagreement between the model's assessment and the market consensus, rather than 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 (Shanghai Port II win 0–2).

Market Assessment

The statistical fair estimate is materially higher than the market on Changchun Xidu.

The model may see a slower-scoring or closer matchup than the market.
Monitor line movement before kickoff — not a betting recommendation.

Post Match Insights

What worked

Under 2.5 goals aligned with the xG profile

What failed

Both Teams To Score: model leaned BTTS Yes; match finished BTTS No
Exact score: outside the model's top score bins

Market lesson

Large model–market gaps do not automatically mean the market is right. Here the closing market priced Shanghai Port II more conservatively (22.0% vs model 35.6%, 13.6 pp), but the model's lean was validated (Shanghai Port II win 0–2).

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Prediction Timeline

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

Jul 18, 2026 · 19:34 UTC Forecast generated
- Model 1X2 · Changchun Xidu 34.7% · Draw 29.7% · Shanghai Port II 35.6%
- xG · Changchun Xidu 1.29 — Shanghai Port II 1.31
Jul 18, 2026 · 07:29 UTC Opening odds snapshot PRE30
- 1X2 odds · Changchun Xidu 4.29 · Draw 2.88 · Shanghai Port II 1.90
- Implied 1X2 · Changchun Xidu 21.1% · Draw 31.4% · Shanghai Port II 47.6%
- Bookmaker · Pinnacle
Jul 18, 2026 · 07:59 UTC Closing snapshot recorded PRE1
- 1X2 odds · Changchun Xidu 4.29 · Draw 2.88 · Shanghai Port II 1.90
- Implied 1X2 · Changchun Xidu 21.1% · Draw 31.4% · Shanghai Port II 47.6%
- Bookmaker · Pinnacle
Jul 18, 2026 · 08:00 UTC Kickoff
FT Full-time result Shanghai Port II win · 0–2
FT Prediction validated Directional lean matched full-time result
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 Validated

Pre-match metrics (historical context)

Prediction Reliability 56/100 · Moderate

Validation: Warning
Large market gap (14 pp)

Evidence ★★★★★

Statistical edge detected
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 26, 2026 · 04:07 UTC Snapshot ID: dp-1816349

Closing Odds 4.29

AI Fair Odds —

CLV Pending

Final Result Shanghai Port II win · Changchun Xidu 0–2 Shanghai Port II

Prediction ✔ Correct

Decision Grade B-

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: China League Two
Fixture: Changchun Xidu vs Shanghai Port II
Kickoff: 2026-07-18 08:00:00
1X2 (model): Home 10.0% · Draw 45.0% · Away 45.0%
xG (showing): Changchun Xidu 1.29 — Shanghai Port II 1.31 (total xG ≈ 2.6)
Value headline: None — no positive EV could be estimated on tracked lines at current best prices (missing odds or thin book depth).
Structural leans (not bets): See the Over/Under and BTTS cards for any directional lean text.
BTTS (model): Yes N/A · No N/A
Correct score (top bin): N/A

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.

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: 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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