Rosternomics
← Trade Database
July 31, 1998

MINBOS

MIN won this trade +$6.4M surplus MIN won this trade +0.2 WAR
MINMIN Terry Ryan net +$6.4M net +0.2
received +$4.0M+$4.0M ± $34M expected surplus · −$3.2M realized received 2.6 ± 4 expected · -0.1 realized WAR
Playoff odds: this deal moved MIN's 1998 odds 0% → 0% (+0 pts) — how trade timing is graded ↗
receives — most valuable first
John BarnesOF·22y·R/R
+$1.8M+$1.8M± $24M exp surplusrealized −$1.6M 1.2± 3 exp WARrealized 0.0
Prior
#121 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
Matt KinneyP·21y·R/R
+$1.8M+$1.8M± $24M exp surplusrealized −$1.6M 1.2± 3 exp WARrealized -0.1
Prior
#158 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
Joe Thomas
+$0.3M+$0.3M± $5M 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)
BOSBOS Dan Duquette net −$6.4M net -0.2
received +$30.4M+$24.0M ± $26M expected surplus · −$9.6M realized received 4.7 ± 3 expected · -0.3 realized WAR
Playoff odds: this deal moved BOS's 1998 odds 78% → 77% (-1 pts) — how trade timing is graded ↗
receives — most valuable first
Orlando Merced1B/OF·31y·B/R
+$27.0M+$25.1M± $22M exp surplusrealized −$4.0M 3.1± 3 exp WARrealized -0.2
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 3.2/yr over 2.1 seasons
Talent
2.10/yr blended
Horizon
1.5 control yr × 0.98 age decline
Greg SwindellP·33y·R/L
+$3.4M−$1.1M± $14M exp surplusrealized −$5.6M 1.6± 2 exp WARrealized -0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.41/yr
Evidence
recent form 1.5/yr over 2.6 seasons
Talent
1.13/yr blended
Horizon
1.5 control yr × 0.94 age decline

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.