Rosternomics
← Trade Database
December 8, 1987

ATLHOU

ATL won this trade +$29.6M surplus ATL won this trade +0.7 WAR
ATLATL Bobby Cox net +$29.6M net +0.7
received +$2.4M+$2.4M ± $33M expected surplus · −$4.8M realized received 1.4 ± 4 expected · -0.8 realized WAR
Playoff odds: this deal moved ATL's 1988 odds 0% → 0% (-0 pts) — how trade timing is graded ↗
receives — most valuable first
Ed Whited3B·24y·R/R
+$1.8M+$1.8M± $30M exp surplusrealized −$4.8M 1.2± 4 exp WARrealized -0.8
Prior
#458 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
Mike Stoker
+$0.3M+$0.3M± $14M exp surplusrealized +$0.0M 0.2± 2 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)
HOUHOU Bill Wood net −$29.6M net -0.7
received −$2.4M−$2.4M ± $18M expected surplus · −$34.4M realized received 0.0 ± 2 expected · -1.5 realized WAR
Playoff odds: this deal moved HOU's 1988 odds 2% → 3% (+0.7 pts) — how trade timing is graded ↗
receives — most valuable first
Rafael RamírezSS·30y·R/R
−$2.2M−$2.2M± $18M exp surplusrealized −$34.4M 0.0± 2 exp WARrealized -1.5
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.7/yr over 1.3 season
Talent
-0.25/yr blended
Horizon
3.0 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.