Rosternomics
← Trade Database
August 27, 1999

BALCLE

BAL won this trade +$7.2M surplus BAL won this trade +0.2 WAR
BALBAL Frank Wren net +$7.2M net +0.2
received +$0.8M+$0.8M ± $6M expected surplus · +$0.0M realized received 0.4 ± 1 expected · 0.0 realized WAR
Playoff odds: this deal moved BAL's 1999 odds 44% → 45% (+1 pts) — how trade timing is graded ↗
receives — most valuable first
Juan Aracena
+$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)
Jimmy Hamilton
+$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)
CLECLE John Hart net −$7.2M net -0.2
received −$5.6M−$5.6M ± $0M expected surplus · −$7.2M realized received 0.0 ± 0 expected · -0.2 realized WAR
Playoff odds: this deal moved CLE's 1999 odds 88% → 88% (-0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Harold BainesDH/OF·40y·L/L
−$5.9M−$5.9M± $0M exp surplusrealized −$7.2M 0.0± 0 exp WARrealized -0.2
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 2.0/yr over 2.3 seasons
Talent
1.36/yr blended
Horizon
0.0 control yr

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.