Rosternomics
← Trade Database
December 14, 2023

MILKCR

unsettledToo soon to call — players still accruing.
MILMIL Matt Arnold net +$0.0M net +0.0
received −$0.8M−$0.8M ± $7M expected surplus · +$0.0M realized received 0.2 ± 1 expected · 0.0 realized WAR
receives — most valuable first
Taylor ClarkeP·31y·R/R
−$0.4M−$0.4M± $7M exp surplusrealized +$0.0M 0.2± 1 exp WARrealized 0.0
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 0.1/yr over 2.3 seasons
Talent
0.17/yr blended
Horizon
2.0 control yrs × 0.55 age decline
KCRKCR J.J. Picollo net +$0.0M net +0.0
received +$3.2M+$3.2M ± $30M expected surplus · +$0.0M realized received 2.3 ± 4 expected · 0.0 realized WAR
receives — most valuable first
Ryan BradyP·25y·R/R
+$2.3M+$2.3M± $22M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
6.0 control yrs
Cam Devanney3B·27y·R/R
+$0.7M+$0.7M± $19M exp surplusrealized +$0.0M 1.0± 2 exp WARrealized 0.0
Prior
#463 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 × 0.82 age decline
Fan verdict — who overpaid?

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.