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MLB · Saturday, September 12, 2026

Seattle Mariners @ Athletics

Graded — this page is the complete record.

The lean (0 units — logged, not staked)

Seattle Mariners ML (-166, LowVig.ag) · confidence 55.4% of 10,000 sims · edge -7.0 pts · 0u

Bryan Woo (4.03 ERA, 1.06 WHIP) vs Gage Jump (5.12 ERA, 1.49 WHIP).

Projected 4.5–4.6; sim total 9.1 against a 9.5 line; park factor 1.02.

Market at board time: moneyline -174 / +148 (consensus at board time) · total 9.5.

Circuit-breaker log (7 checks)
  • Rule 2 check passed: market line -166 within the night-game juice cap (-180; night -180, day -170, day = first pitch before 17:00 venue-local).
  • Rule 8 check passed: raw model 49.7% vs de-vigged market 61.2%: 11.4-point divergence within the 12-point cap (blended to 55.4% at MODEL_WEIGHT=0.5).
  • Edge gate: model edge vs offered price is -7.0 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 0.304 vs league 0.319 (gap +0.015, threshold 0.035).
  • Rules 3/5 (velocity/spin telemetry): manual review required: Statcast feed not wired.
  • Weather (totals paper track ONLY): 77°F at first pitch: run environment x1.028. Applied to the paper totals pick; the staked board ignores weather entirely.

👁 Watch (market-proving, 0u): Under 9.5 (-107, LowVig.ag) · model 57.6% · edge +5.9 pts · divergence +7.6 pts

Open vs close

MarketBoard timeClose
Moneyline (away / home)-174 / +148-145 / +122
Total9.59.5 (o-112 / u-108)

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.

❌ Watch pick (market-proving, paper, 0u staked): Under 9.5 (-107, LowVig.ag) — LOSS (-1.00u paper).

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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