Rosternomics
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July 26, 2021

PITSDP

PIT won this trade +$5.6M surplus PIT won this trade +0.9 WAR
PITPIT Ben Cherington net +$5.6M net +0.9
received +$4.0M+$4.0M ± $29M expected surplus · +$8.0M realized received 2.6 ± 4 expected · 1.5 realized WAR
Playoff odds: this deal moved PIT's 2021 odds 0% → 0% (-0 pts) — how trade timing is graded ↗
receives — most valuable first
Tucupita Marcano2B/SS/OF·21y·L/R
+$1.8M+$1.8M± $20M exp surplusrealized −$3.2M 1.2± 2 exp WARrealized -0.5
Prior
no pedigree — league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
5.5 control yrs
Jack SuwinskiOF·22y·L/L
+$1.8M+$1.8M± $20M exp surplusrealized +$11.2M 1.2± 2 exp WARrealized 2.0
Prior
#444 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
Michell Miliano
+$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 AJ Preller net −$5.6M net -0.9
received +$6.4M+$6.4M ± $16M expected surplus · +$2.4M realized received 2.6 ± 2 expected · 0.6 realized WAR
Playoff odds: this deal moved SDP's 2021 odds 19% → 21% (+2.2 pts) — how trade timing is graded ↗
receives — most valuable first
Adam Frazier2B/OF·29y·L/R
+$6.5M+$6.5M± $16M exp surplusrealized +$2.4M 2.6± 2 exp WARrealized 0.6
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 2.1/yr over 1.7 season
Talent
1.29/yr blended
Horizon
2.0 control yrs

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.