Rosternomics
← Trade Database
March 24, 1987

TEXDET

TEX won this trade +$2.4M surplus TEX won this trade +0.3 WAR
TEXTEX Tom Grieve net +$2.4M net +0.3
received +$0.0M+$0.0M ± $15M expected surplus · +$0.0M realized received 0.2 ± 2 expected · 0.0 realized WAR
Playoff odds: this deal moved TEX's 1987 odds 1% → 2% (+0.1 pts) — how trade timing is graded ↗
receives — most valuable first
Dario Guzman
+$0.3M+$0.3M± $15M 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)
DETDET Bill Lajoie net −$2.4M net -0.3
received −$3.2M−$3.2M ± $46M expected surplus · −$2.4M realized received 0.2 ± 6 expected · -0.3 realized WAR
Playoff odds: this deal moved DET's 1987 odds 85% → 84% (-0.9 pts) — how trade timing is graded ↗
receives — most valuable first
Orlando MercadoC·25y·R/R
−$3.4M−$3.4M± $46M exp surplusrealized −$2.4M 0.2± 6 exp WARrealized -0.3
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.6/yr over 0.3 season
Talent
0.04/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.