Rosternomics
← Trade Database
May 14, 2019

OAKNYY

OAK won this trade +$9.6M surplus OAK won this trade +0.2 WAR
OAKOAK Billy Beane net +$9.6M net +0.2
received +$0.0M+$0.0M ± $0M expected surplus · +$0.0M realized received 0.0 ± 0 expected · 0.0 realized WAR
Playoff odds: this deal moved OAK's 2019 odds 63% → 64% (+1.1 pts) — how trade timing is graded ↗
receives — most valuable first
cash / PTBNL
+$0.0M+$0.0M± $0M exp surplusrealized +$0.0M 0.0± 0 exp WARrealized 0.0
Cash or player to be named — no projection
NYYNYY Brian Cashman net −$9.6M net -0.2
received −$6.4M−$6.4M ± $7M expected surplus · −$9.6M realized received 0.5 ± 1 expected · -0.2 realized WAR
Playoff odds: this deal moved NYY's 2019 odds 84% → 84% (-0.7 pts) — how trade timing is graded ↗
receives — most valuable first
Kendrys Morales1B/DH·36y·B/R
−$6.0M−$6.0M± $7M exp surplusrealized −$9.6M 0.5± 1 exp WARrealized -0.2
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.6/yr over 2.6 seasons
Talent
0.46/yr blended
Horizon
1.1 control yr × 0.93 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.