Rosternomics
← Trade Database
December 16, 2002

OAKSDP

OAK won this trade +$0.0M surplus OAK won this trade +0.0 WAR
OAKOAK Billy Beane net +$0.0M net +0.0
received +$0.0M+$0.0M ± $6M expected surplus · +$0.0M realized received 0.2 ± 1 expected · 0.0 realized WAR
receives — most valuable first
Buddy Hernandez
+$0.3M+$0.3M± $6M exp surplusrealized +$0.0M 0.2± 1 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)
SDPSDP Kevin Towers net +$0.0M net +0.0
received −$1.6M−$1.6M ± $10M expected surplus · +$0.0M realized received 0.3 ± 1 expected · 0.0 realized WAR
receives — most valuable first
Jose Flores2B·30y·R/R
−$1.4M−$1.4M± $10M exp surplusrealized +$0.0M 0.3± 1 exp WARrealized 0.0
Prior
#651 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form -0.4/yr over 0.0 season
Talent
0.19/yr blended
Horizon
4.4 control yrs × 0.34 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.