Predictions / Football / Colombia. Primera B / Union Magdalena vs Real Cartagena

Prediction Audit: Union Magdalena vs Real Cartagena Prediction, Odds & AI Betting Tips

Union Magdalena Union Magdalena
Sep 29, 2026 - 23:00
1 1.40
1 1.20
xG Accuracy: 85%
Real Cartagena Real Cartagena

The model missed the final outcome (Draw 1–1).

The model had projected Union Magdalena at 39.9%, but the full-time result went the other way.

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 (2 goals) ✖ Incorrect
  • Both Teams To Score BTTS Yes Yes ✔ Correct
  • 1X2 Union Magdalena Draw ✖ Incorrect
  • Correct Score Insights 1-1, 1-0, 0-1, 2-1, 1-2 1-1 ✔ Correct

Model vs Closing Market

Broadly Aligned

The model and closing market are broadly aligned.

Largest probability gap: Union Magdalena -0.2 pp

Outcome Model Closing Market Difference Signal
Union Magdalena 39.9% 40.2% -0.2 pp Aligned
Draw 29.5% 29.5% +0.0 pp Aligned
Real Cartagena 30.6% 30.3% +0.2 pp Aligned

The model and closing market are broadly aligned, with probability differences below 5 percentage points.

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 result was Draw 1–1.

Market Assessment

The market and model are broadly aligned. Any small pricing gap likely reflects rounding or bookmaker margin, not a structural disagreement.

  • Current pricing remains close to the model baseline.

Post Match Insights

What worked

  • Both Teams To Score (Yes) matched the full-time result
  • Exact score 1–1 fell within the model's highlighted bins

What failed

  • Over / Under 2.5: model leaned Over 2.5; match finished Under 2.5 (2 goals)
  • 1X2: model leaned Union Magdalena; match finished Draw

Market lesson

The full-time result was Draw 1–1, which did not match the model's pre-match lean on 1X2.

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Prediction Timeline

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

  1. Sep 29, 2026 · 22:59 UTC Forecast generated
    • Model 1X2 · Union Magdalena 40.0% · Draw 29.5% · Real Cartagena 30.6%
    • xG · Union Magdalena 1.40 — Real Cartagena 1.20
  2. Sep 29, 2026 · 22:29 UTC Opening odds snapshot PRE30
    • 1X2 odds · Union Magdalena 2.31 · Draw 3.15 · Real Cartagena 3.06
    • Implied 1X2 · Union Magdalena 40.2% · Draw 29.5% · Real Cartagena 30.3%
    • Bookmaker · Pinnacle
  3. Sep 29, 2026 · 22:59 UTC Closing snapshot recorded PRE1
    • 1X2 odds · Union Magdalena 2.31 · Draw 3.15 · Real Cartagena 3.06
    • Implied 1X2 · Union Magdalena 40.2% · Draw 29.5% · Real Cartagena 30.3%
    • Bookmaker · Pinnacle
  4. Sep 29, 2026 · 23:00 UTC Kickoff
  5. FT Full-time result Draw · 1–1
  6. FT Prediction missed 1X2 lean did not match 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 Missed
Pre-match metrics (historical context)
Prediction Reliability 79/100 · High
  • Validation: Pass
Evidence ★★★★★
  • No strong statistical edge
  • Direction agrees with model lean
  • Validation passed
Market Compatibility 98/100
Betting Confidence 82/100

Validation Report

Immutable Snapshot

Prediction Time: Sep 24, 2026 · 00:53 UTC Snapshot ID: dp-10583676

Closing Odds 2.31
AI Fair Odds —
CLV Pending
Final Result Draw · Union Magdalena 1–1 Real Cartagena
Prediction ✖ Missed
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: Primera B
  • Fixture: Union Magdalena vs Real Cartagena
  • Kickoff: 2026-09-29 23:00:00
  • 1X2 (model): Home 40.0% · Draw 29.5% · Away 30.6%
  • xG (showing): Union Magdalena 1.4 — Real Cartagena 1.2 (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 54.3% · No 45.7%) Value lean (pricing): O/U 2.5 Over 2.5; BTTS Yes
  • BTTS (model): Yes 54.3% · No 45.7%
  • 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: No Primary Bet

Outcome: Missed — Pre-match 1X2 lean did not match 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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Primera B Primera B — Standings
# TEAM MP W D L PTS
1 Internacional Palmira 30 16 8 6 56
2 Real Cartagena 32 15 9 8 54
3 Envigado 32 15 9 8 54
4 Quindio 30 14 9 7 51
5 Union Magdalena 29 14 6 9 48
6 Tigres FC 31 11 9 11 42
7 Bogota FC 30 9 10 11 37
8 Ind. Yumbo 24 9 9 6 36
9 Patriotas 25 9 7 9 34
10 Barranquilla 31 9 7 15 34
11 Real Soacha 25 8 9 8 33
12 Popayan 24 6 9 9 27
13 Orsomarso 23 6 8 9 26
14 Depor FC 25 5 8 12 23
15 Real Santander 25 3 10 12 19
16 Leones FC 24 4 7 13 19
# TEAM MP GS GC +/- PTS
1 Real Cartagena 32 50 35 +15 54
2 Envigado 32 43 28 +15 54
3 Union Magdalena 29 40 28 +12 48
4 Internacional Palmira 30 39 27 +12 56
5 Barranquilla 31 36 42 -6 34
6 Quindio 30 31 21 +10 51
7 Tigres FC 31 31 26 +5 42
8 Real Soacha 25 31 28 +3 33
9 Patriotas 25 30 33 -3 34
10 Popayan 24 29 31 -2 27
11 Bogota FC 30 25 31 -6 37
12 Depor FC 25 24 38 -14 23
13 Ind. Yumbo 24 23 17 +6 36
14 Real Santander 25 21 38 -17 19
15 Orsomarso 23 17 23 -6 26
16 Leones FC 24 15 39 -24 19
Primera B Colombia. Primera B Predictions