Rosternomics
← Trade Database
June 25, 2024

SEAMIL

unsettledToo soon to call — players still accruing.
SEASEA Jerry Dipoto net +$0.8M net +0.1
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 SEA's 2024 odds 31% → 31% (+0.4 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
MILMIL Matt Arnold net −$0.8M net -0.1
received +$4.0M+$4.0M ± $9M expected surplus · −$0.8M realized received 0.8 ± 1 expected · -0.1 realized WAR
Playoff odds: this deal moved MIL's 2024 odds 45% → 44% (-0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Dallas KeuchelP·36y·L/L
+$3.9M+$3.9M± $9M exp surplusrealized −$0.8M 0.8± 1 exp WARrealized -0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 1.1/yr over 1.6 season
Talent
0.74/yr blended
Horizon
1.1 control yr × 0.97 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.