Rosternomics
← Trade Database
July 30, 2010

ARICHW

ARI won this trade +$22.4M surplus ARI won this trade +4.2 WAR
ARIARI Jerry Dipoto net +$22.4M net +4.2
received +$16.8M+$16.8M ± $30M expected surplus · +$63.2M realized received 3.6 ± 4 expected · 8.8 realized WAR
Playoff odds: this deal moved ARI's 2010 odds 2% → 2% (+0.1 pts) — how trade timing is graded ↗
receives — most valuable first
Daniel HudsonP·23y·R/R
+$14.8M+$14.8M± $21M exp surplusrealized +$64.0M 2.4± 3 exp WARrealized 8.9
Prior
Composite #66.0 pedigree (Baseball America #66 (2010)) → 0.46/yr
Evidence
recent form 0.3/yr over 0.2 season
Talent
0.43/yr blended
Horizon
5.5 control yrs
David HolmbergP·18y·R/L
+$1.8M+$1.8M± $22M exp surplusrealized −$0.8M 1.2± 3 exp WARrealized -0.1
Prior
#71 overall draft pick — at the league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
5.5 control yrs
CHWCHW Kenny Williams net −$22.4M net -4.2
received +$68.0M+$68.0M ± $26M expected surplus · +$40.8M realized received 5.0 ± 3 expected · 4.6 realized WAR
Playoff odds: this deal moved CHW's 2010 odds 41% → 40% (-1.2 pts) — how trade timing is graded ↗
receives — most valuable first
Edwin JacksonP·26y·R/R
+$68.2M+$68.2M± $26M exp surplusrealized +$40.8M 5.0± 3 exp WARrealized 4.6
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 2.2/yr over 2.4 seasons
Talent
2.50/yr blended
Horizon
2.0 control yrs

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.