Rosternomics
← Trade Database
May 3, 1991

KCRPIT

PIT won this trade +$4.0M surplus KCR won this trade +0.4 WAR
KCRKCR Herk Robinson net −$4.0M net +0.4
received −$1.6M−$2.4M ± $13M expected surplus · −$4.8M realized received 1.1 ± 2 expected · 0.4 realized WAR
Playoff odds: this deal moved KCR's 1991 odds 15% → 16% (+1.2 pts) — how trade timing is graded ↗
receives — most valuable first
Carmelo Martínez1B/OF·30y·R/R
−$2.0M−$2.7M± $13M exp surplusrealized −$4.8M 1.1± 2 exp WARrealized 0.4
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 1.1/yr over 1.9 season
Talent
0.73/yr blended
Horizon
1.5 control yr × 0.96 age decline
PITPIT Larry Doughty net +$4.0M net -0.4
received +$1.6M+$1.6M ± $30M expected surplus · −$0.8M realized received 1.2 ± 4 expected · 0.0 realized WAR
Playoff odds: this deal moved PIT's 1991 odds 83% → 82% (-1.3 pts) — how trade timing is graded ↗
receives — most valuable first
Victor ColeP·23y·B/R
+$1.8M+$1.8M± $30M exp surplusrealized −$0.8M 1.2± 4 exp WARrealized 0.0
Prior
#361 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

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.