Rosternomics
← Trade Database
March 31, 1989

HOUBAL

HOU won this trade +$4.0M surplus HOU won this trade +0.6 WAR
HOUHOU Bill Wood net +$4.0M net +0.6
received +$0.8M+$0.8M ± $42M expected surplus · −$2.4M realized received 0.7 ± 5 expected · 0.0 realized WAR
Playoff odds: this deal moved HOU's 1989 odds 8% → 7% (-0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Carl NicholsC·26y·R/R
+$0.6M+$0.6M± $42M exp surplusrealized −$2.4M 0.7± 5 exp WARrealized -0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.1/yr over 0.2 season
Talent
0.19/yr blended
Horizon
4.0 control yrs
BALBAL Roland Hemond net −$4.0M net -0.6
received −$1.6M−$1.6M ± $22M expected surplus · −$6.4M realized received 0.6 ± 3 expected · -0.6 realized WAR
Playoff odds: this deal moved BAL's 1989 odds 8% → 9% (+0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Vic Hithe
+$0.3M+$0.3M± $12M exp surplusrealized +$0.0M 0.2± 2 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)
Dave JohnsonP·29y·R/R
−$1.6M−$1.6M± $18M exp surplusrealized −$6.4M 0.4± 2 exp WARrealized -0.6
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.1/yr over 0.1 season
Talent
0.19/yr blended
Horizon
5.0 control yrs × 0.46 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.