Prediction Audit: Cham vs Biel-Bienne Prediction, Odds & AI Betting Tips

Cham

May 30, 2026 - 14:00

3 1.45

2 1.25

xG Accuracy: 53%

Biel-Bienne

AI correctly predicted the Cham win.

The match finished 3–2, 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 Over 2.5 Over 2.5 (5 goals) ✔ Correct
Both Teams To Score BTTS No Yes ✖ Incorrect
1X2 Cham Cham ✔ Correct
Correct Score Insights 1-2, 1-1, 2-2, 2-1, 1-3 3-2 ✖ Incorrect

Model vs Closing Market

Outcome	Model	Closing Market	Difference	Signal
Cham	41.8%	29.3%	+12.4 pp	Model Edge
Draw	25.7%	23.9%	+1.8 pp	Aligned
Biel-Bienne	32.6%	46.8%	-14.2 pp	Market Higher

The closing market estimates Biel-Bienne's win probability at 46.8%, compared with the model's estimate of 32.6%, a difference of 14.2 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 (Cham win 3–2).

Market Assessment

The market is materially more optimistic about Biel-Bienne than the current fair estimate.

Investors may be incorporating information not fully reflected in the baseline model.
Tournament-specific context can shift market pricing.

Post Match Insights

What worked

Expected goals projected a high-scoring match (ΣxG 2.70) — 5 goals materialised
Over 2.5 goals aligned with the xG profile

What failed

Both Teams To Score: model leaned BTTS No; match finished BTTS Yes
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 Cham higher (56.0% vs model 41.8%, 14.2 pp), but the model's lean was validated (Cham win 3–2).

Premium betting site stake: New users can use the promo code FHn2uDc1 to receive $100 cash.

Prediction Timeline

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

May 30, 2026 · 18:52 UTC Forecast generated
- Model 1X2 · Cham 41.8% · Draw 25.7% · Biel-Bienne 32.6%
- xG · Cham 1.45 — Biel-Bienne 1.25
May 30, 2026 · 13:29 UTC Opening odds snapshot PRE30
- 1X2 odds · Cham 3.03 · Draw 3.72 · Biel-Bienne 1.90
- Implied 1X2 · Cham 29.3% · Draw 23.9% · Biel-Bienne 46.8%
- Bookmaker · Pinnacle
May 30, 2026 · 13:59 UTC Closing snapshot recorded PRE1
- 1X2 odds · Cham 3.03 · Draw 3.72 · Biel-Bienne 1.90
- Implied 1X2 · Cham 29.3% · Draw 23.9% · Biel-Bienne 46.8%
- Bookmaker · Pinnacle
May 30, 2026 · 14:00 UTC Kickoff
FT Full-time result Cham win · 3–2
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 ★★★★★

No strong statistical edge
Market has already priced much of the edge
Validation warning

Pricing proximity (inverse gap) 9/100

Monitoring Confidence 19/100

Validation Report

Immutable Snapshot

Prediction Time: Jul 23, 2026 · 15:55 UTC Snapshot ID: dp-1471473

Closing Odds 1.9

AI Fair Odds —

CLV Pending

Final Result Cham win · Cham 3–2 Biel-Bienne

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: 1. Liga Promotion
Fixture: Cham vs Biel-Bienne
Kickoff: 2026-05-30 14:00:00
1X2 (model): Home 41.8% · Draw 25.7% · Away 32.6%
xG (showing): Cham 1.45 — Biel-Bienne 1.25 (total xG ≈ 2.7)
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 Over 2.5 (Under 2.5 30.3% · Over 2.5 69.7%); BTTS Yes (Yes 69.2% · No 30.8%) Value lean (pricing): O/U 2.5 Over 2.5; BTTS No
BTTS (model): Yes 69.2% · No 30.8%
Correct score (top bin): 1-2 (8.9%)

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: 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 02, 2026 (UTC)

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Back to Predictions

1. Liga Promotion — Standings

#	TEAM	MP	W	D	L	PTS
1	SC Kriens	34	25	4	5	79
2	Brühl	34	22	6	6	72
3	Biel-Bienne	34	19	7	8	64
4	Basel II	34	17	8	9	59
5	Bavois	34	17	4	13	55
6	Young Boys II	34	15	9	10	54
7	FC Schaffhausen	34	16	5	13	53
8	Bulle	34	15	6	13	51
9	Cham	34	14	8	12	50
10	Grand-Saconnex	34	11	10	13	43
11	Zürich II	34	11	8	15	41
12	Breitenrain	34	11	8	15	41
13	Luzern II	34	10	10	14	40
14	Kreuzlingen	34	8	13	13	37
15	Lugano II	34	8	12	14	36
16	Paradiso	34	8	11	15	35
17	Lausanne Sport II	34	9	4	21	31
18	Vevey Sports	34	1	5	28	2

#	TEAM	MP	GS	GC	+/-	PTS
1	SC Kriens	34	100	43	+57	79
2	Brühl	34	89	46	+43	72
3	Luzern II	34	80	83	-3	40
4	Biel-Bienne	34	78	46	+32	64
5	Grand-Saconnex	34	71	69	+2	43
6	Bulle	34	70	64	+6	51
7	Young Boys II	34	66	52	+14	54
8	Basel II	34	65	48	+17	59
9	Bavois	34	64	53	+11	55
10	Cham	34	62	61	+1	50
11	Lausanne Sport II	34	60	84	-24	31
12	Zürich II	34	59	62	-3	41
13	FC Schaffhausen	34	51	46	+5	53
14	Paradiso	34	51	65	-14	35
15	Breitenrain	34	47	51	-4	41
16	Lugano II	34	45	75	-30	36
17	Kreuzlingen	34	43	66	-23	37
18	Vevey Sports	34	28	115	-87	2