Rosternomics
Preston Mattingly

Preston Mattingly

★ active

General manager for the Phillies (2025–present).

2 seasons with salary-era data across 1 stint. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.

Titles0
Pennants0
Playoffs1
Record127–95
Win %0.572
+5.4WAB — wins above budget55th/195 execs
+8.8Talent above budget — roster-construction alpha (talent your budget bought above expectation)57th/195 execs
1.98Acquisition leverage — playoff pts each bought win added, given the roster it joined (did you buy where wins matter?)22nd/195 execs
-36.9WAR surplus (era-neutral, win-equiv)114th/195 execs
-210Roster surplus $M156th/195 execs

How the roster was sourced

Share of gross-positive acquired fWAR by channel (vs. league average).

Build channels — net fWAR

Acquired minus surrendered / signed minus walked.

Home-grown (draft/intl)-0.8
Trade-0.3
Free agency-4.8
Rule 5 / minor draft+0.0
Sourcing mix: 0% draft · 8% FA · 92% trade · 0% R5

Tenure breakdown

TeamRoleYearsSzns WAB WAB/yr TAB WAR surp HG Trade FA R5 AcqLev W-L% POPenWS Surp $M
Phillies GM 2025–present 1 +5.4 +5.41 +8.8 -36.9 -0.8 -0.3 -4.8 +0.0 1.98 0.572 1 -210
Career total (1985+ data) 2 +5.4 +8.8 -36.9 -0.8 -0.3 -4.8 +0.0 1.98 0.572 1 -210

Players acquired — 14 players, by realized fWAR for the franchise (scroll for more)

PlayerPosTeam How Year fWAR
Jhoan Durán P PHI Trade 2025 +0.9
Andrew Painter P PHI Draft 2026 +0.4
Brad Keller P PHI Free agency 2025 +0.1
Tim Mayza P PHI Free agency 2026 +0.1
Zach Pop P PHI Free agency 2025 +0.1
Alan Rangel P PHI Draft 2025 +0.1
Kyle Backhus P PHI Trade 2025 +0.0
Justin Crawford OF PHI Draft 2026 -0.0
Adolis García OF PHI Free agency 2025 -0.0
Nolan Hoffman P PHI Trade 2025 +0.0
Daniel Robert P PHI Trade 2025 -0.1
Dylan Moore 2B/OF PHI Free agency 2026 -0.2
Felix Reyes 1B/OF PHI Draft 2026 -0.4
Otto Kemp 3B/OF PHI Draft 2025 -0.9

WAB = wins above what the team's payroll predicted (resource-controlled). WAR surplus = era-neutral value (WAR minus payroll in win-equivalents). Roster surplus $M = dollar value of WAR over cost. Build channels (realized fWAR): HG = home-grown via amateur draft / international signing; Trade = acquired minus surrendered (incl. purchases/waivers); FA = signed minus walked; R5 = Rule-5 / minor-league-draft pickups. Credit follows the acquisition year — home-grown to the regime at the player's draft/signing (not whoever was in the chair when he peaked), trade/FA/R5 to the GM who made the move. Players acquired as prospects before debuting (e.g. Smoltz, Bagwell; Rule-5 picks like Uggla) are counted as trade/R5, not home-grown. All are franchise-level outcomes during the stint, not solely attributable to one executive.