Rosternomics
← Trade Database
April 28, 2013

BALANA

ANA won this trade +$0.8M surplus BAL won this trade +0.0 WAR
BALBAL Dan Duquette net −$0.8M net +0.0
received +$4.8M+$4.0M ± $13M expected surplus · −$0.8M realized received 1.4 ± 2 expected · 0.0 realized WAR
receives — most valuable first
Chris SnyderC·32y·R/R
+$5.0M+$4.3M± $13M exp surplusrealized −$0.8M 1.4± 2 exp WARrealized -0.0
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 1.6/yr over 1.5 season
Talent
0.99/yr blended
Horizon
1.5 control yr × 0.94 age decline
ANAANA Jerry Dipoto net +$0.8M net +0.0
received −$0.8M−$0.8M ± $18M expected surplus · +$0.0M realized received 0.4 ± 2 expected · 0.0 realized WAR
receives — most valuable first
Rob DelaneyP·28y·L/R
−$0.9M−$0.9M± $18M exp surplusrealized +$0.0M 0.4± 2 exp WARrealized 0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.7/yr over 0.1 season
Talent
0.14/yr blended
Horizon
4.0 control yrs × 0.76 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.