Rosternomics
← Trade Database
November 18, 1997

COLARI

COL won this trade +$0.8M surplus COL won this trade +1.5 WAR
COLCOL Bob Gebhard net +$0.8M net +1.5
received −$2.4M−$2.4M ± $10M expected surplus · +$0.8M realized received 0.8 ± 1 expected · 1.5 realized WAR
Playoff odds: this deal moved COL's 1998 odds 4% → 6% (+2 pts) — how trade timing is graded ↗
receives — most valuable first
Chuck McElroyP·30y·L/L
−$2.6M−$2.6M± $10M exp surplusrealized +$0.8M 0.8± 1 exp WARrealized 1.5
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 0.8/yr over 2.8 seasons
Talent
0.61/yr blended
Horizon
1.5 control yr × 0.93 age decline
ARIARI Joe Garagiola net −$0.8M net -1.5
received +$0.8M−$0.8M ± $8M expected surplus · +$0.0M realized received 0.2 ± 1 expected · 0.0 realized WAR
Playoff odds: this deal moved ARI's 1998 odds 1% → 1% (-0.3 pts) — how trade timing is graded ↗
receives — most valuable first
Harvey PulliamOF·30y·R/R
+$1.0M−$0.5M± $8M exp surplusrealized +$0.0M 0.2± 1 exp WARrealized 0.0
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 0.1/yr over 0.5 season
Talent
0.19/yr blended
Horizon
1.5 control yr × 0.83 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.