Rosternomics
← Trade Database
May 26, 2007

CHWLAD

CHW won this trade +$0.0M surplus CHW won this trade +0 WAR
CHWCHW Kenny Williams net +$0.0M net +0.0
received +$0.0M−$1.6M ± $10M expected surplus · +$0.0M realized received 0.0 ± 1 expected · 0.0 realized WAR
receives — most valuable first
Tomás Pérez2B/3B/SS·33y·B/R
+$0.0M−$1.4M± $10M exp surplusrealized +$0.0M 0.0± 1 exp WARrealized 0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.5/yr over 1.7 season
Talent
-0.22/yr blended
Horizon
1.5 control yr
LADLAD Ned Colletti net +$0.0M net +0.0
received +$1.6M+$1.6M ± $22M expected surplus · +$0.0M realized received 1.2 ± 3 expected · 0.0 realized WAR
receives — most valuable first
Dwayne PollokP·26y·R/R
+$1.8M+$1.8M± $22M exp surplusrealized +$0.0M 1.2± 3 exp WARrealized 0.0
Prior
#802 overall draft pick — at the league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
6.0 control yrs × 0.92 age decline

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.