Rosternomics
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November 19, 1993

WSNLAD

WSN won this trade +$200.0M surplus WSN won this trade +16.5 WAR
WSNWSN Dan Duquette net +$200.0M net +16.5
received +$20.0M+$20.0M ± $50M expected surplus · +$201.6M realized received 4.8 ± 6 expected · 19.2 realized WAR
Playoff odds: this deal moved WSN's 1994 odds 86% → 92% (+5.5 pts) — how trade timing is graded ↗
receives — most valuable first
Pedro MartínezP·22y·R/R
+$19.6M+$19.6M± $50M exp surplusrealized +$201.6M 4.8± 6 exp WARrealized 19.2
Prior
Composite #62.0 pedigree (Baseball America #62 (1993)) — fell off 1 list since, regressed → 0.25/yr
Evidence
recent form 1.8/yr over 1.0 season
Talent
0.95/yr blended
Horizon
5.0 control yrs
LADLAD Fred Claire net −$200.0M net -16.5
received +$33.6M+$33.6M ± $27M expected surplus · +$1.6M realized received 5.1 ± 3 expected · 2.7 realized WAR
Playoff odds: this deal moved LAD's 1994 odds 15% → 9% (-6.2 pts) — how trade timing is graded ↗
receives — most valuable first
Delino DeShields2B·25y·L/R
+$33.6M+$33.6M± $27M exp surplusrealized +$1.6M 5.1± 3 exp WARrealized 2.7
Prior
league baseline (track record outweighs draft pedigree) → 0.29/yr
Evidence
recent form 3.9/yr over 2.1 seasons
Talent
2.56/yr blended
Horizon
2.0 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.