Rosternomics
← Trade Database
July 18, 1997

MIASFG

MIA won this trade +$6.4M surplus MIA won this trade +0.3 WAR
MIAMIA Dave Dombrowski net +$6.4M net +0.3
received +$2.4M+$2.4M ± $29M expected surplus · +$0.0M realized received 1.5 ± 4 expected · 0.0 realized WAR
Playoff odds: this deal moved MIA's 1997 odds 26% → 27% (+1.2 pts) — how trade timing is graded ↗
receives — most valuable first
Brandon LeeseP·21y·R/R
+$2.3M+$2.3M± $28M exp surplusrealized +$0.0M 1.3± 4 exp WARrealized 0.0
Prior
#192 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
Bobby Rector
+$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)
SFGSFG Brian Sabean net −$6.4M net -0.3
received +$10.4M+$10.4M ± $18M expected surplus · −$6.4M realized received 1.7 ± 2 expected · -0.3 realized WAR
Playoff odds: this deal moved SFG's 1997 odds 31% → 30% (-1.3 pts) — how trade timing is graded ↗
receives — most valuable first
Pat RappP·29y·R/R
+$10.5M+$10.5M± $18M exp surplusrealized −$6.4M 1.7± 2 exp WARrealized -0.3
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 1.2/yr over 2.1 seasons
Talent
0.83/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.