Rosternomics
← Trade Database
November 18, 2010

ARINYY

ARI won this trade +$0.0M surplus ARI won this trade +0.1 WAR
ARIARI Jerry Dipoto net +$0.0M net +0.1
received +$2.4M+$2.4M ± $20M expected surplus · +$0.0M realized received 1.0 ± 2 expected · 0.1 realized WAR
Playoff odds: this deal moved ARI's 2011 odds 55% → 55% (+0.5 pts) — how trade timing is graded ↗
receives — most valuable first
Juan Miranda1B·28y·L/L
+$2.6M+$2.6M± $20M exp surplusrealized +$0.0M 1.0± 2 exp WARrealized 0.1
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.6/yr over 0.3 season
Talent
0.28/yr blended
Horizon
4.0 control yrs × 0.91 age decline
NYYNYY Brian Cashman net +$0.0M net -0.1
received +$2.4M+$2.4M ± $24M expected surplus · +$0.0M realized received 1.3 ± 3 expected · 0.0 realized WAR
Playoff odds: this deal moved NYY's 2011 odds 95% → 95% (-0.1 pts) — how trade timing is graded ↗
receives — most valuable first
Scottie AllenP·19y·R/R
+$2.3M+$2.3M± $24M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#336 overall draft pick — at the league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
6.0 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.