Rosternomics
← Trade Database
December 14, 2007

KCRARI

KCR won this trade +$15.2M surplus KCR won this trade +3.4 WAR
KCRKCR Dayton Moore net +$15.2M net +3.4
received −$4.8M−$4.8M ± $27M expected surplus · +$15.2M realized received 0.0 ± 3 expected · 3.8 realized WAR
Playoff odds: this deal moved KCR's 2008 odds 1% → 2% (+0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Alberto Callaspo2B/3B·25y·B/R
−$4.5M−$4.5M± $27M exp surplusrealized +$15.2M 0.0± 3 exp WARrealized 3.8
Prior
Composite #82.0 pedigree (Baseball America #82 (2007)) — fell off 1 list since, regressed → 0.23/yr
Evidence
recent form -2.5/yr over 0.5 season
Talent
-0.53/yr blended
Horizon
5.5 control yrs
ARIARI Josh Byrnes net −$15.2M net -3.4
received +$0.0M+$0.0M ± $34M expected surplus · +$0.0M realized received 0.8 ± 4 expected · 0.4 realized WAR
Playoff odds: this deal moved ARI's 2008 odds 16% → 12% (-3.4 pts) — how trade timing is graded ↗
receives — most valuable first
Billy BucknerP·24y·R/R
−$0.3M−$0.3M± $34M exp surplusrealized +$0.0M 0.8± 4 exp WARrealized 0.4
Prior
#55 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form -0.2/yr over 0.2 season
Talent
0.15/yr blended
Horizon
5.5 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.