Build any hypothetical MLB trade — drop in players from any roster, add cash, and get each side's expected surplus and WAR from the Bayesian model that grades every real trade since 1985.
All 30 front offices in one view — who runs each team, total payroll, the year-over-year spend change, competitive regime, record & postseason — for any year since 1985. Leading 2026 so far:
Draft Value Over Slot: career fWAR each pick produced above what its draft slot historically returns. Hit DVOS (drafting position players above slot) is the reliable position skill.
The 10 picks whose career WAR most exceeded what their draft slot × position × age cohort historically produces. Settled cohorts only (drafts ≤ 2018). The patron saint is Mike Trout — #25 overall in 2009.