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MLB · Sunday, August 23, 2026

Chicago Cubs @ Seattle Mariners

Graded — this page is the complete record.

The lean (0 units — logged, not staked)

Chicago Cubs ML (-112, FanDuel) · confidence 53.4% of 10,000 sims · edge +0.6 pts · 0u

Shota Imanaga (3.77 ERA, 1.09 WHIP) vs Bryce Miller (3.71 ERA, 1.04 WHIP).

Projected 4.3–3.8; sim total 8.1 against a 7.5 line; park factor 0.92.

Market at board time: moneyline -116 / +102 (consensus at board time) · total 7.5.

Circuit-breaker log (7 checks)
  • Rule 2 check passed: market line -112 within the day-game juice cap (-170; night -180, day -170, day = first pitch before 17:00 venue-local).
  • Rule 8 check passed: raw model 54.9% vs de-vigged market 52.0%: 2.8-point divergence within the 12-point cap (blended to 53.4% at MODEL_WEIGHT=0.5).
  • Edge gate: model edge vs offered price is +0.6 pts (minimum 2). No allocation; a good side at a bad price is a bad bet.
  • Rule 4 check passed: both starters carry full-season workloads.
  • Rule 6 check passed: away 14-day wOBA 0.347 vs league 0.314 (gap -0.034, threshold 0.035).
  • Rules 3/5 (velocity/spin telemetry): manual review required: Statcast feed not wired.
  • Weather: roofed park, no adjustment (totals paper track).

Open vs close

MarketBoard timeClose
Moneyline (away / home)-116 / +102-116 / +102
Total7.57.5 (o-107 / u-112)

The close is the last pre-first-pitch capture. Movement toward a side after we post is the fastest honest read on pick quality — see the CLV column on the ledger.

No stake rode on this game. The lean and its failed gates above are the whole position: passing is a position too.

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