Rosternomics
← Trade Database
August 28, 2020

CHWPIT

CHW won this trade +$0.0M surplus CHW won this trade +0.0 WAR
CHWCHW Kenny Williams net +$0.0M net +0.0
received +$5.6M+$5.6M ± $7M expected surplus · +$0.0M realized received 0.9 ± 1 expected · 0.0 realized WAR
receives — most valuable first
Jarrod DysonOF·35y·L/R
+$5.7M+$5.7M± $7M exp surplusrealized +$0.0M 0.9± 1 exp WARrealized 0.0
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 1.4/yr over 2.0 seasons
Talent
0.93/yr blended
Horizon
1.0 control yr
PITPIT Ben Cherington net +$0.0M net +0.0
received +$0.0M+$0.0M ± $0M expected surplus · +$0.0M realized received 0.0 ± 0 expected · 0.0 realized WAR
receives — most valuable first
cash / PTBNL
+$0.0M+$0.0M± $0M exp surplusrealized +$0.0M 0.0± 0 exp WARrealized 0.0
Cash or player to be named — no projection

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.