Rosternomics
← Trade Database
July 31, 2004

MIASDP

SDP won this trade +$4.8M surplus MIA won this trade +0.1 WAR
MIAMIA Larry Beinfest net −$4.8M net +0.1
received +$8.8M+$8.8M ± $15M expected surplus · −$4.8M realized received 1.7 ± 2 expected · 0.1 realized WAR
Playoff odds: this deal moved MIA's 2004 odds 17% → 18% (+0.3 pts) — how trade timing is graded ↗
receives — most valuable first
Ismael ValdezP·30y·R/R
+$8.6M+$8.6M± $15M exp surplusrealized −$4.8M 1.7± 2 exp WARrealized 0.1
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 1.6/yr over 2.4 seasons
Talent
1.15/yr blended
Horizon
1.5 control yr × 0.96 age decline
SDPSDP Kevin Towers net +$4.8M net -0.1
received +$1.6M+$1.6M ± $21M expected surplus · +$0.0M realized received 1.2 ± 3 expected · 0.0 realized WAR
Playoff odds: this deal moved SDP's 2004 odds 51% → 50% (-0.5 pts) — how trade timing is graded ↗
receives — most valuable first
Travis ChickP·20y·R/R
+$1.8M+$1.8M± $21M exp surplusrealized +$0.0M 1.2± 3 exp WARrealized 0.0
Prior
#413 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.