Rosternomics
← Trade Database
December 15, 1997

SDPMIA

SDP won this trade +$137.6M surplus SDP won this trade +0.1 WAR
SDPSDP Kevin Towers net +$137.6M net +0.1
received +$87.2M+$50.4M ± $22M expected surplus · +$180.8M realized received 6.1 ± 3 expected · 10.0 realized WAR
Playoff odds: this deal moved SDP's 1998 odds 5% → 33% (+28.2 pts) — how trade timing is graded ↗
receives — most valuable first
Kevin BrownP·33y·R/R
+$87.4M+$50.7M± $22M exp surplusrealized +$180.8M 6.1± 3 exp WARrealized 10.0
Prior
league baseline (track record outweighs draft pedigree) → 0.40/yr
Evidence
recent form 5.7/yr over 2.7 seasons
Talent
4.10/yr blended
Horizon
1.5 control yr × 0.98 age decline
MIAMIA Dave Dombrowski net −$137.6M net -0.1
received +$21.6M+$21.6M ± $49M expected surplus · +$43.2M realized received 7.6 ± 6 expected · 9.9 realized WAR
Playoff odds: this deal moved MIA's 1998 odds 1% → 0% (-0.9 pts) — how trade timing is graded ↗
receives — most valuable first
Derrek Lee1B·22y·R/R
+$11.1M+$11.1M± $34M exp surplusrealized +$48.0M 3.8± 4 exp WARrealized 10.6
Prior
#14 overall draft pick → 0.57/yr
Evidence
recent form 1.8/yr over 0.1 season
Talent
0.70/yr blended
Horizon
5.5 control yrs
Rafael MedinaP·23y·R/R
+$8.2M+$8.2M± $24M exp surplusrealized −$4.8M 2.5± 3 exp WARrealized -0.7
Prior
Composite #72.0 prospect (Baseball America #72 (1998)) → 0.46/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.46/yr blended
Horizon
5.5 control yrs
Steve HoffP·20y·L/L
+$2.3M+$2.3M± $26M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#397 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

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.