Rosternomics
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August 24, 2016 · 3-team trade

MIATEXATL

MIA won this trade +$0.0M surplus MIA won this trade +0.1 WAR
MIAMIA Michael Hill net +$0.0M net +0.1
received +$0.0M+$0.0M ± $7M expected surplus · +$0.0M realized received 0.0 ± 1 expected · 0.1 realized WAR
Playoff odds: this deal moved MIA's 2016 odds 22% → 23% (+0.3 pts) — how trade timing is graded ↗
receives — most valuable first
Jeff FrancoeurOF·32y·R/R
−$0.3M−$0.3M± $7M exp surplusrealized +$0.0M 0.0± 1 exp WARrealized 0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.23/yr
Evidence
recent form -0.7/yr over 1.8 season
Talent
-0.30/yr blended
Horizon
1.0 control yr
TEXTEX Jon Daniels net +$0.0M net +0.0
received +$0.0M+$0.0M ± $0M expected surplus · +$0.0M realized received 0.0 ± 0 expected · 0.0 realized WAR
receives — most valuable first
cash / PTBNL
+$0.0M+$0.0M± $0M exp surplusrealized +$0.0M 0.0± 0 exp WARrealized 0.0
Cash or player to be named — no projection
ATLATL John Hart net +$0.0M net -0.1
received +$2.4M+$2.4M ± $19M expected surplus · +$0.0M realized received 1.4 ± 2 expected · 0.0 realized WAR
Playoff odds: this deal moved ATL's 2016 odds 1% → 1% (-0 pts) — how trade timing is graded ↗
receives — most valuable first
Dylan Moore2B/OF·23y·R/R
+$1.8M+$1.8M± $18M exp surplusrealized +$0.0M 1.2± 2 exp WARrealized 0.0
Prior
#198 overall draft pick — at the league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
5.5 control yrs
Matt Foley
+$0.3M+$0.3M± $6M 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)

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.