Rosternomics
← Trade Database
August 31, 2020

SDPANA

SDP won this trade +$0.0M surplus SDP won this trade +0.2 WAR
SDPSDP AJ Preller net +$0.0M net +0.2
received +$8.0M+$8.0M ± $10M expected surplus · −$0.8M realized received 1.5 ± 1 expected · 0.0 realized WAR
receives — most valuable first
Jason CastroC·33y·L/R
+$8.2M+$8.2M± $10M exp surplusrealized −$0.8M 1.5± 1 exp WARrealized -0.0
Prior
league baseline (track record outweighs draft pedigree) → 0.27/yr
Evidence
recent form 2.4/yr over 1.6 season
Talent
1.51/yr blended
Horizon
1.0 control yr
ANAANA Billy Eppler net +$0.0M net -0.2
received +$1.6M+$1.6M ± $26M expected surplus · −$0.8M realized received 1.1 ± 3 expected · -0.2 realized WAR
receives — most valuable first
Gerardo ReyesP·27y·R/R
+$1.4M+$1.4M± $26M exp surplusrealized −$0.8M 1.1± 3 exp WARrealized -0.2
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.3/yr over 0.9 season
Talent
0.25/yr blended
Horizon
5.5 control yrs × 0.81 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.