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MLB · Thursday, August 20, 2026

San Francisco Giants @ Cleveland Guardians

Graded — this page is the complete record.

The lean (0 units — logged, not staked)

Cleveland Guardians -1.5 run line · confidence 40.1% of 10,000 sims · edge -6.1 pts · 0u

Landen Roupp (4.31 ERA, 1.30 WHIP) vs Gavin Williams (3.74 ERA, 1.08 WHIP).

Projected 3.6–4.1; sim total 7.8 against a 7 line; park factor 0.97.

Market at board time: moneyline +180 / -204 (consensus at board time) · total 7.

Circuit-breaker log (7 checks)
  • Rule 2 fired: market line -195 exceeds the day-game juice cap (-170): pivoted off the moneyline to CLE -1.5 (covers 40.1% of sims).
  • Rule 8 check passed: raw model 54.7% vs de-vigged market 65.3%: 10.5-point divergence within the 12-point cap (blended to 40.1% at MODEL_WEIGHT=0.5).
  • Edge gate: model edge vs offered price is -6.1 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 flag: away 14-day wOBA 0.266 trails league 0.316 by 0.051 (threshold 0.035). 8% run tax applied to the away run rate.
  • Rules 3/5 (velocity/spin telemetry): manual review required: Statcast feed not wired.
  • Weather (totals paper track ONLY): 79°F at first pitch: run environment x1.036. Applied to the paper totals pick; the staked board ignores weather entirely.

Open vs close

MarketBoard timeClose
Moneyline (away / home)+180 / -204+182 / -206
Total77 (o+100 / u-120)

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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