Rosternomics
← Trade Database
July 29, 1997

NYYTOR

NYY won this trade +$5.6M surplus NYY won this trade +0.3 WAR
NYYNYY Bob Watson net +$5.6M net +0.3
received +$0.0M+$0.0M ± $5M expected surplus · +$0.0M realized received 0.2 ± 1 expected · 0.0 realized WAR
Playoff odds: this deal moved NYY's 1997 odds 74% → 76% (+1.3 pts) — how trade timing is graded ↗
receives — most valuable first
Angel Ramirez
+$0.3M+$0.3M± $5M exp surplusrealized +$0.0M 0.2± 1 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)
TORTOR Gord Ash net −$5.6M net -0.3
received +$0.8M+$0.0M ± $7M expected surplus · −$5.6M realized received 1.0 ± 1 expected · -0.3 realized WAR
Playoff odds: this deal moved TOR's 1997 odds 5% → 4% (-0.3 pts) — how trade timing is graded ↗
receives — most valuable first
Mariano Duncan2B/SS·34y·R/R
+$0.7M−$0.1M± $7M exp surplusrealized −$5.6M 1.0± 1 exp WARrealized -0.3
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 1.1/yr over 1.9 season
Talent
0.77/yr blended
Horizon
1.5 control yr × 0.89 age decline

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.