Preston Mattingly
★ activeGeneral manager for the Phillies (2025–present).
Across the full 2-season sample, the measured profile stands out most for championship leverage per acquired WAR (97th percentile), traded-for surplus (97th percentile), and avoidance of negative WAR (92nd percentile). The clearest contrast is drafted-player surplus (1st percentile): drafted players have created less surplus value than for most peers. Because the sample covers fewer than five seasons, those comparisons are descriptive rather than stable.
2 seasons with salary-era data across 1 stint. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.
0 pennants · 1 playoff appearance · 175–126 (0.581)
Overview
| Team | Role | Year | Pay $M |
Rel Pay |
Surp $M |
Surp WAR |
Dead % |
Cheap $M |
Draft $M |
Trd $M |
Int'l $M |
$ / WAR |
WAR | Depth | Dead WAR |
HG | Trade | Net/ Trd |
FA | R5 | RFA | PPA | CPA | WAB | TAB | W-L% | PO | Pen | WS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Phillies |
GM | 2025 96–66 | $290 | 186 | -87 | -21.7 | 18% | +57 | -1 | +43 | +8 | $5.4M | 50.6 | 9.0 | -3.3 | -0.7 | +1.3 | +0.31 | -6.9 | +0.0 | +0.47 | 4.81 | 0.89 | +6.2 | +8.9 | 0.593 | ✓ | ||
| Phillies |
GM | 2026 79–60 | $266 | 166 | -110 | -22.8 | 28% | +20 | -10 | +23 | -3 | $7.3M | 32.2 | 7.0 | -4.0 | +0.6 | -0.0 | -0.01 | +0.6 | +0.0 | +0.09 | 4.30 | 0.28 | +3.2 | -2.8 | 0.568 | |||
| Career total (1985+ data) | $556 | 176 | -197 | -44.5 | 23% | +38 | -5 | +33 | +2 | $6.2M | 82.8 | 8.0 | -3.7 | -0.2 | +1.2 | +0.17 | -6.3 | +0.0 | +0.37 | 4.64 | 0.69 | +9.4 | +6.1 | 0.581 | 1 | – | – | ||
Roster Construction
Build channels — net fWAR
Acquired minus surrendered / signed minus walked.
Trades
Trades made — 0 deals credited to Preston Mattingly, best expected value first; surplus is realized value in $M
No graded trades on record for this executive.
Players acquired — 26 players, by realized fWAR for the franchise (scroll for more)
| Player | Pos | Team | How | Year | Szns | fWAR | WAR/yr | RFA | PPA | CPA |
|---|---|---|---|---|---|---|---|---|---|---|
| Jesús Luzardo | P | PHI |
Trade | 2025 | 2 | +10.3 | +5.2 | -2.22 | 26.3% | 4.76% |
| Jhoan Durán | P | PHI |
Trade | 2025 | 2 | +2.5 | +1.2 | -1.60 | 4.2% | 0.81% |
| Harrison Bader | OF | PHI |
Trade | 2025 | 1 | +1.2 | +1.2 | -1.45 | 5.4% | 1.05% |
| Jonathan Bowlan | P | PHI |
Trade | 2026 | 1 | +1.0 | +1.0 | +0.26 | 4.8% | 0.32% |
| Tim Mayza | P | PHI |
Free agency | 2026 | 1 | +0.8 | +0.8 | – | 3.8% | 0.25% |
| Derek Hill | OF | PHI |
Trade | 2026 | 1 | +0.8 | +0.8 | -0.47 | 4.1% | 0.27% |
| Andrew Painter | P | PHI |
Draft | 2026 | 1 | +0.6 | +0.6 | – | – | – |
| Max Kepler | OF | PHI |
Trade | 2025 | 1 | +0.5 | +0.5 | – | 2.4% | 0.46% |
| Justin Crawford | OF | PHI |
Draft | 2026 | 1 | +0.3 | +0.3 | – | – | – |
| Bryan De La Cruz | OF | PHI |
Free agency | 2025 | 1 | +0.3 | +0.3 | – | 1.7% | 0.11% |
| Walker Buehler | P | PHI |
Trade | 2025 | 1 | +0.3 | +0.3 | – | 1.6% | 0.32% |
| Brad Keller | P | PHI |
Free agency | 2025 | 1 | +0.2 | +0.2 | – | 0.9% | 0.06% |
| Alan Rangel | P | PHI |
Draft | 2025 | 2 | +0.2 | +0.1 | – | – | – |
| Trevor Richards | P | PHI |
Trade | 2026 | 1 | +0.2 | +0.2 | – | 0.8% | 0.05% |
| Kyle Backhus | P | PHI |
Trade | 2025 | 1 | +0.1 | +0.1 | -0.42 | 0.3% | 0.02% |
| Zach Pop | P | PHI |
Free agency | 2025 | 1 | +0.1 | +0.1 | – | 0.5% | 0.03% |
| Luis Arráez | 1B/2B | PHI |
Trade | 2026 | 1 | +0.1 | +0.1 | -0.57 | 0.6% | 0.04% |
| Steward Berroa | OF | PHI |
Trade | 2026 | – | -0.0 | – | +0.50 | – | – |
| Adolis García | OF | PHI |
Free agency | 2025 | – | -0.0 | – | – | – | – |
| Nolan Hoffman | P | PHI |
Trade | 2025 | 2 | +0.0 | +0.0 | +0.49 | – | – |
| Daniel Robert | P | PHI |
Trade | 2025 | – | -0.0 | – | -0.64 | – | – |
| Brooks Raley | P | PHI |
Trade | 2026 | 1 | +0.0 | +0.0 | – | 0.1% | 0.01% |
| Lou Trivino | P | PHI |
Trade | 2025 | 1 | +0.0 | +0.0 | – | 0.5% | 0.10% |
| 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 | – | -1.0 | – | – | – | – |
Trade-side columns: RFA is playoff-readiness percentage points added to the future roster foundation. It grades the franchise's entire side of a trade, so the same score repeats for every player acquired in that package. PPA/CPA remain player-level arrival-year probability points.
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.