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MLB · Monday, August 24, 2026

Chicago Cubs @ Arizona Diamondbacks

Graded — this page is the complete record.

The lean (0 units — logged, not staked)

Chicago Cubs ML (-138, BetOnline.ag) · confidence 56.4% of 10,000 sims · edge -1.6 pts · 0u

Kevin Gausman (4.58 ERA, 1.30 WHIP) vs Merrill Kelly (5.37 ERA, 1.52 WHIP).

Projected 5.5–4.8; sim total 10.3 against a 9 line; park factor 1.05.

Market at board time: moneyline -140 / +125 (consensus at board time) · total 9.

Circuit-breaker log (7 checks)
  • Rule 2 check passed: market line -138 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 56.0% vs de-vigged market 56.8%: 0.7-point divergence within the 12-point cap (blended to 56.4% at MODEL_WEIGHT=0.5).
  • Edge gate: model edge vs offered price is -1.6 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 0.356 vs league 0.315 (gap -0.041, 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)-140 / +125-109 / -105
Total98.25 (o-111 / u-7)

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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