Rosternomics
← Trade Database
August 31, 1987

ATLKCR

ATL won this trade +$17.6M surplus ATL won this trade +0.1 WAR
ATLATL Bobby Cox net +$17.6M net +0.1
received +$1.6M+$1.6M ± $25M expected surplus · −$0.8M realized received 1.1 ± 3 expected · 0.0 realized WAR
Playoff odds: this deal moved ATL's 1987 odds 2% → 2% (-0.1 pts) — how trade timing is graded ↗
receives — most valuable first
Terry BellC·24y·R/R
+$1.3M+$1.3M± $25M exp surplusrealized −$0.8M 1.1± 3 exp WARrealized -0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.2/yr over 0.1 season
Talent
0.21/yr blended
Horizon
5.5 control yrs
KCRKCR John Schuerholz net −$17.6M net -0.1
received −$0.8M−$0.8M ± $0M expected surplus · −$18.4M realized received 0.0 ± 0 expected · -0.1 realized WAR
Playoff odds: this deal moved KCR's 1987 odds 19% → 20% (+0.7 pts) — how trade timing is graded ↗
receives — most valuable first
Gene GarberP·39y·R/R
−$0.7M−$0.7M± $0M exp surplusrealized −$18.4M 0.0± 0 exp WARrealized -0.1
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 1.6/yr over 1.6 season
Talent
0.98/yr blended
Horizon
0.0 control yr

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.