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MLB · Wednesday, August 19, 2026

Arizona Diamondbacks @ Boston Red Sox

Graded — this page is the complete record.

The lean (0 units — logged, not staked)

Boston Red Sox ML (-158, DraftKings) · confidence 57.2% of 10,000 sims · edge -4.0 pts · 0u

Brandon Pfaadt (3.11 ERA, 1.13 WHIP) vs Payton Tolle (2.97 ERA, 1.06 WHIP).

Projected 4.2–4.7; sim total 8.9 against a 8 line; park factor 1.06.

Market at board time: moneyline +142 / -160 (consensus at board time) · total 8.

Circuit-breaker log (7 checks)
  • Rule 2 check passed: market line -158 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 54.6% vs de-vigged market 59.8%: 5.2-point divergence within the 12-point cap (blended to 57.2% at MODEL_WEIGHT=0.5).
  • Edge gate: model edge vs offered price is -4.0 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 0.337 vs league 0.315 (gap -0.022, threshold 0.035).
  • Rules 3/5 (velocity/spin telemetry): manual review required: Statcast feed not wired.
  • Weather (totals paper track ONLY): 88°F at first pitch: run environment x1.072 + 5% hot-day kicker vs home SP fly-ball (62% air outs). Applied to the paper totals pick; the staked board ignores weather entirely.

Open vs close

MarketBoard timeClose
Moneyline (away / home)+142 / -160+142 / -160
Total88 (o-114 / u-106)

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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