Rosternomics
← Trade Database
July 31, 1996

MIANYY

MIA won this trade +$0.8M surplus MIA won this trade +0.3 WAR
MIAMIA Dave Dombrowski net +$0.8M net +0.3
received +$1.6M+$1.6M ± $25M expected surplus · +$0.0M realized received 1.2 ± 3 expected · 0.3 realized WAR
Playoff odds: this deal moved MIA's 1996 odds 27% → 30% (+2.9 pts) — how trade timing is graded ↗
receives — most valuable first
Mark HuttonP·26y·R/R
+$2.0M+$2.0M± $25M exp surplusrealized +$0.0M 1.2± 3 exp WARrealized 0.3
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.3/yr over 0.1 season
Talent
0.23/yr blended
Horizon
5.5 control yrs × 0.94 age decline
NYYNYY Bob Watson net −$0.8M net -0.3
received +$2.4M+$2.4M ± $8M expected surplus · −$0.8M realized received 0.7 ± 1 expected · 0.0 realized WAR
Playoff odds: this deal moved NYY's 1996 odds 55% → 51% (-3.6 pts) — how trade timing is graded ↗
receives — most valuable first
David WeathersP·26y·R/R
+$2.7M+$2.7M± $8M exp surplusrealized −$0.8M 0.7± 1 exp WARrealized -0.0
Prior
#82 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 0.6/yr over 1.8 season
Talent
0.44/yr blended
Horizon
1.5 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.