Rosternomics
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December 6, 2012

MINPHI

MIN won this trade +$12.0M surplus MIN won this trade +0.5 WAR
MINMIN Terry Ryan net +$12.0M net +0.5
received +$56.0M+$56.0M ± $46M expected surplus · +$34.4M realized received 8.4 ± 6 expected · 4.7 realized WAR
Playoff odds: this deal moved MIN's 2013 odds 1% → 1% (-0.3 pts) — how trade timing is graded ↗
receives — most valuable first
Vance WorleyP·25y·R/R
+$48.9M+$48.9M± $42M exp surplusrealized −$1.6M 7.0± 5 exp WARrealized -0.2
Prior
#102 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 2.4/yr over 1.4 season
Talent
1.40/yr blended
Horizon
5.0 control yrs
Trevor MayP·23y·R/R
+$7.0M+$7.0M± $19M exp surplusrealized +$36.0M 1.4± 2 exp WARrealized 4.9
Prior
Composite #69.0 prospect (Baseball America #69 (2012)) — fell off 1 list since, regressed → 0.26/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.26/yr blended
Horizon
5.5 control yrs
PHIPHI Ruben Amaro net −$12.0M net -0.5
received +$36.0M+$36.0M ± $42M expected surplus · +$22.4M realized received 6.5 ± 5 expected · 4.2 realized WAR
Playoff odds: this deal moved PHI's 2013 odds 1% → 1% (+0.3 pts) — how trade timing is graded ↗
receives — most valuable first
Ben RevereOF·25y·L/R
+$35.7M+$35.7M± $42M exp surplusrealized +$22.4M 6.5± 5 exp WARrealized 4.2
Prior
league baseline (track record outweighs draft pedigree) → 0.27/yr
Evidence
recent form 2.2/yr over 1.4 season
Talent
1.29/yr blended
Horizon
5.0 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.