Rosternomics
Log in Sign up 𝕏
← Trade Database
July 22, 1989

NYY⇄SDP

NYY won this trade +$6.4M surplus NYY won this trade +0.2 WAR
NYYNYY Bob Quinn net +$6.4M net +0.2
received +$60.8M+$60.8M ± $46M expected surplus · −$4.8M realized received 7.5 ± 6 expected · 0.5 realized WAR
Playoff odds: this deal moved NYY's 1989 odds 8% → 10% (+1.8 pts) — how trade timing is graded ↗
receives — most valuable first
Freddie ToliverP·28y·R/R
+$32.1M+$32.1M± $44M exp surplusrealized +$0.0M 4.6± 6 exp WARrealized 0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 1.9/yr over 1.1 season
Talent
1.00/yr blended
Horizon
5.0 control yrs × 0.91 age decline
Walt TerrellP·31y·L/R
+$28.6M+$28.6M± $15M exp surplusrealized −$4.8M 2.9± 2 exp WARrealized 0.5
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 2.2/yr over 2.3 seasons
Talent
1.55/yr blended
Horizon
2.0 control yrs × 0.95 age decline
SDPSDP Jack McKeon net −$6.4M net -0.2
received +$6.4M+$6.4M ± $22M expected surplus · −$11.2M realized received 2.4 ± 3 expected · 0.3 realized WAR
Playoff odds: this deal moved SDP's 1989 odds 7% → 6% (-1.4 pts) — how trade timing is graded ↗
receives — most valuable first
Mike Pagliarulo3B·29y·L/R
+$4.3M+$4.3M± $16M exp surplusrealized −$8.8M 1.6± 2 exp WARrealized 0.6
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 1.1/yr over 2.2 seasons
Talent
0.78/yr blended
Horizon
2.0 control yrs
Don SchulzeP·26y·R/R
+$2.4M+$2.4M± $15M exp surplusrealized −$2.4M 0.8± 2 exp WARrealized -0.3
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.8/yr over 0.5 season
Talent
0.41/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.

Rosternomics — front-office performance, roster value, and transaction history. Follow @rosternomics on X.
Decision-maker records extend to 1933; resource-controlled WAR and payroll metrics cover 1985–2026. Data sources include FanGraphs, Baseball-Reference, the Chadwick Bureau register, the Lahman Database, prospect rankings from Baseball America, MLB Pipeline, and FanGraphs, and public payroll records. Transaction and trade data was obtained free of charge from and is copyrighted by Retrosheet. Executive birth/death data via Wikidata (CC0).
Privacy Policy · Terms of Service · © 2026 Rosternomics