Every EV calculation has a "fair line" baked in. The question of which book that comes from matters more than the formula on top of it.
The default: Pinnacle
Pinnacle famously runs low margin, takes sharp action without limiting, and moves on information. For most major-league markets — NFL sides and totals, NBA sides, MLB moneylines — Pinnacle is the steady-state fair line. Strip the vig, and the implied probability is the consensus.
When Pinnacle isn't enough
Three cases break the default:
- Stale Pinnacle. Late at night, on minor markets, or right before kickoff, Pinnacle can lag a sharp move on Circa or a major exchange.
- Player props. Pinnacle's prop coverage is thin. Here the fair line is typically a weighted blend of Circa, BetCRIS, and the deepest exchange.
- DFS-specific markets. Pick'em platforms aren't tradeable lines and shouldn't be blended in.
What BettingLab does
Our pipeline weights books by recency and depth. When Pinnacle's last update is older than the sharpest available alternative, the alternative wins. That's why a few BettingLab EV calls disagree with naive Pinnacle-only scrapers — by design.