Rosternomics
← Trade Database
July 31, 2019

TBRSFG

TBR won this trade +$3.2M surplus TBR won this trade +0.4 WAR
TBRTBR Erik Neander net +$3.2M net +0.4
received +$1.6M+$1.6M ± $20M expected surplus · +$0.8M realized received 1.2 ± 2 expected · 0.1 realized WAR
receives — most valuable first
Jacob LopezP·21y·L/L
+$1.8M+$1.8M± $20M exp surplusrealized +$0.8M 1.2± 2 exp WARrealized 0.1
Prior
#766 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
SFGSFG Farhan Zaidi net −$3.2M net -0.4
received +$1.6M+$1.6M ± $20M expected surplus · −$2.4M realized received 1.2 ± 2 expected · -0.3 realized WAR
receives — most valuable first
Joe McCarthyOF·25y·L/L
+$1.8M+$1.8M± $20M exp surplusrealized −$2.4M 1.2± 2 exp WARrealized -0.3
Prior
#148 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.