Justin Hollander
★ activeGeneral manager for the Mariners (2023–present).
4 seasons with salary-era data across 1 stint. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.
General manager for the Mariners (2023–present).
4 seasons with salary-era data across 1 stint. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.
Share of gross-positive acquired fWAR by channel (vs. league average).
Acquired minus surrendered / signed minus walked.
| Team | Role | Years | Szns | WAB | WAB/yr | TAB | WAR surp | HG | Trade | FA | R5 | AcqLev | W-L% | PO | Pen | WS | Surp $M |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▸ Mariners | GM | 2023–present | 3 | +21.4 | +7.13 | +25.8 | +18.1 | +18.6 | +5.6 | -8.2 | +0.0 | 2.34 | 0.540 | 1 | – | – | +66 |
| Career total (1985+ data) | 4 | +21.4 | +25.8 | +18.1 | +18.6 | +5.6 | -8.2 | +0.0 | 2.34 | 0.540 | 1 | – | – | +66 | |||
| Player | Pos | Team | How | Year | fWAR |
|---|---|---|---|---|---|
| Bryan Woo | P | SEA | Draft | 2023 | +8.7 |
| Bryce Miller | P | SEA | Draft | 2023 | +5.1 |
| Luke Raley | OF | SEA | Trade | 2024 | +3.6 |
| Jorge Polanco | 2B/SS | SEA | Free agency | 2025 | +2.6 |
| Dominic Canzone | DH/OF | SEA | Trade | 2023 | +2.2 |
| José Caballero | 2B/SS | SEA | Draft | 2023 | +1.9 |
| Cade Marlowe | OF | SEA | Draft | 2023 | +0.9 |
| Emerson Hancock | P | SEA | Draft | 2023 | +0.8 |
| Leo Rivas | 2B/SS | SEA | Draft | 2024 | +0.7 |
| Cole Young | 2B | SEA | Draft | 2025 | +0.7 |
| Jose Ferrer | P | SEA | Trade | 2025 | +0.6 |
| Ryan Bliss | 2B | SEA | Trade | 2023 | +0.4 |
| Ben Williamson | 3B | SEA | Draft | 2025 | +0.4 |
| Isaiah Campbell | P | SEA | Draft | 2023 | +0.3 |
| Jhonny Pereda | C | SEA | Trade | 2026 | +0.3 |
| Jorge Polanco | 2B/SS | SEA | Trade | 2024 | +0.3 |
| Trent Thornton | P | SEA | Trade | 2023 | +0.3 |
| Luis Urías | 2B/3B | SEA | Trade | 2023 | +0.2 |
| Cooper Criswell | P | SEA | Trade | 2026 | +0.1 |
| Alex Hoppe | P | SEA | Trade | 2025 | +0.1 |
| Connor Joe | 1B/OF | SEA | Free agency | 2026 | +0.1 |
| Josh Naylor | 1B | SEA | Free agency | 2025 | +0.1 |
| Will Wilson | 2B/3B | SEA | Free agency | 2026 | +0.1 |
| Luis Castillo | P | SEA | Free agency | 2025 | +0.0 |
| Jhonathan Díaz | P | SEA | Free agency | 2024 | -0.0 |
| Harry Ford | C | SEA | Draft | 2025 | -0.0 |
| Víctor Robles | OF | SEA | Free agency | 2024 | -0.0 |
| Ryder Ryan | P | SEA | Draft | 2023 | +0.0 |
| Gregory Santos | P | SEA | Trade | 2024 | -0.0 |
| Kirby Snead | P | SEA | Free agency | 2024 | -0.0 |
| Austin Voth | P | SEA | Free agency | 2024 | -0.0 |
| Seby Zavala | C | SEA | Trade | 2023 | -0.0 |
| Ty Adcock | P | SEA | Draft | 2023 | -0.1 |
| Blas Castano | P | SEA | Draft | 2025 | -0.1 |
| Logan Evans | P | SEA | Draft | 2025 | -0.1 |
| Tommy La Stella | 2B/3B | SEA | Free agency | 2023 | -0.1 |
| Casey Legumina | P | SEA | Trade | 2025 | -0.1 |
| Rhylan Thomas | OF | SEA | Trade | 2024 | -0.1 |
| Mitch Garver | C/DH | SEA | Free agency | 2023 | -0.2 |
| Jesse Hahn | P | SEA | Free agency | 2024 | -0.2 |
| Tyler Locklear | 1B | SEA | Draft | 2024 | -0.2 |
| Josh Simpson | P | SEA | Trade | 2026 | -0.2 |
| Troy Taylor | P | SEA | Draft | 2024 | -0.2 |
| Juan Then | P | SEA | Draft | 2023 | -0.2 |
| Jason Vosler | 1B/3B | SEA | Free agency | 2023 | -0.2 |
| Rob Refsnyder | OF | SEA | Free agency | 2025 | -0.8 |
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.