Rosternomics
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December 6, 2011

TORCHW

CHW won this trade +$11.2M surplus TOR won this trade +0.1 WAR
TORTOR Alex Anthopoulos net −$11.2M net +0.1
received +$28.8M+$28.8M ± $30M expected surplus · −$11.2M realized received 3.1 ± 4 expected · 0.1 realized WAR
Playoff odds: this deal moved TOR's 2012 odds 1% → 1% (-0 pts) — how trade timing is graded ↗
receives — most valuable first
Sergio SantosP·28y·R/R
+$28.7M+$28.7M± $30M exp surplusrealized −$11.2M 3.1± 4 exp WARrealized 0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.32/yr
Evidence
recent form 1.2/yr over 1.6 season
Talent
0.82/yr blended
Horizon
4.0 control yrs × 0.96 age decline
CHWCHW Kenny Williams net +$11.2M net -0.1
received +$0.0M+$0.0M ± $6M expected surplus · +$0.0M realized received 0.2 ± 1 expected · 0.0 realized WAR
Playoff odds: this deal moved CHW's 2012 odds 26% → 26% (+0.9 pts) — how trade timing is graded ↗
receives — most valuable first
Nestor Molina
+$0.3M+$0.3M± $6M exp surplusrealized +$0.0M 0.2± 1 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)

Each player is valued on what he was expected to produce at the time of the trade, versus what he actually produced for his new team.

Expected WAR blends a player's pedigree (composite top-100 rank / draft slot, or a baseline) with his recent track record, projected over the years of team control acquired. The ± figure is a historically calibrated predictive standard deviation, measuring how widely comparable forecasts have missed around their expected value. Surplus values that production at the FA market price of a win (~$8M/WAR) minus salary — so cost-controlled players carry large surplus and expensive ones little, even at the same WAR. Who won is descriptive, not a skill claim: ~99% of a trade's outcome is unforeseeable at the time.