Rosternomics
← Trade Database
July 30, 2023

TEXSTL

unsettledToo soon to call — players still accruing.
TEXTEX Chris Young net +$11.2M net +1.5
received +$19.2M+$19.2M ± $14M expected surplus · +$8.0M realized received 2.4 ± 2 expected · 1.7 realized WAR
Playoff odds: this deal moved TEX's 2023 odds 80% → 85% (+5.3 pts) — how trade timing is graded ↗
receives — most valuable first
Jordan MontgomeryP·30y·L/L
+$18.1M+$18.1M± $11M exp surplusrealized +$8.8M 1.9± 1 exp WARrealized 1.6
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 2.9/yr over 2.0 seasons
Talent
1.87/yr blended
Horizon
1.0 control yr
Chris StrattonP·32y·R/R
+$1.4M+$1.4M± $7M exp surplusrealized −$0.8M 0.5± 1 exp WARrealized 0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.31/yr
Evidence
recent form 0.7/yr over 2.5 seasons
Talent
0.55/yr blended
Horizon
1.0 control yr
STLSTL John Mozeliak net −$11.2M net -1.5
received +$4.8M+$4.8M ± $32M expected surplus · −$3.2M realized received 3.2 ± 4 expected · 0.2 realized WAR
Playoff odds: this deal moved STL's 2023 odds 16% → 12% (-4.4 pts) — how trade timing is graded ↗
receives — most valuable first
Tekoah RobyP·21y·R/R
+$2.3M+$2.3M± $22M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#86 overall draft pick — at the league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
6.0 control yrs
Thomas Saggese2B/SS·21y·R/R
+$1.8M+$1.8M± $20M exp surplusrealized +$0.0M 1.2± 2 exp WARrealized 0.2
Prior
#145 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
John KingP·28y·L/L
+$0.6M+$0.6M± $12M exp surplusrealized −$3.2M 0.7± 2 exp WARrealized -0.0
Prior
#314 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 0.2/yr over 1.7 season
Talent
0.21/yr blended
Horizon
4.0 control yrs × 0.83 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.