Rosternomics
← Trade Database
June 19, 2001

ARIOAK

ARI won this trade +$1.6M surplus ARI won this trade +0.3 WAR
ARIARI Joe Garagiola net +$1.6M net +0.3
received +$0.8M+$0.8M ± $20M expected surplus · +$0.0M realized received 0.5 ± 2 expected · 0.1 realized WAR
Playoff odds: this deal moved ARI's 2001 odds 81% → 82% (+0.8 pts) — how trade timing is graded ↗
receives — most valuable first
Ryan ChristensonOF·27y·R/R
+$0.4M+$0.4M± $20M exp surplusrealized +$0.0M 0.5± 2 exp WARrealized 0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 0.1/yr over 1.6 season
Talent
0.15/yr blended
Horizon
3.0 control yrs
OAKOAK Billy Beane net −$1.6M net -0.3
received +$0.0M+$0.0M ± $19M expected surplus · −$1.6M realized received 0.7 ± 2 expected · -0.2 realized WAR
Playoff odds: this deal moved OAK's 2001 odds 92% → 92% (-0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Rob RyanOF·28y·L/L
−$0.1M−$0.1M± $19M exp surplusrealized −$1.6M 0.7± 2 exp WARrealized -0.2
Prior
#785 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 0.1/yr over 0.3 season
Talent
0.20/yr blended
Horizon
5.0 control yrs × 0.70 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.