Rosternomics
← Trade Database
March 31, 1988

OAKMIN

OAK won this trade +$0.0M surplus OAK won this trade +0.4 WAR
OAKOAK Sandy Alderson net +$0.0M net +0.4
received −$1.6M−$1.6M ± $38M expected surplus · +$0.0M realized received 0.5 ± 5 expected · 0.4 realized WAR
receives — most valuable first
Joe KlinkP·26y·L/L
−$1.8M−$1.8M± $38M exp surplusrealized +$0.0M 0.5± 5 exp WARrealized 0.4
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.2/yr over 0.4 season
Talent
0.10/yr blended
Horizon
5.5 control yrs × 0.91 age decline
MINMIN Andy MacPhail net +$0.0M net -0.4
received +$0.0M+$0.0M ± $14M expected surplus · +$0.0M realized received 0.2 ± 2 expected · 0.0 realized WAR
receives — most valuable first
Russ Kibler
+$0.3M+$0.3M± $14M exp surplusrealized +$0.0M 0.2± 2 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)

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.