Rosternomics
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Mariners SEA

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President of baseball ops: Jerry Dipoto (since 2022) · GM: Justin Hollander (since 2023)

2025 roster — every player, value & surplus

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+8.7
WAB — wins above budget
+7.1
TAB — roster Talent above budget
90–72 (0.556)
record · made playoffs
+12M
surplus $M (value/$)
40.7
roster fWAR
$141.4M
payroll
PlayerAgeServiceGfWARSalary $MSurplus $M
Cal Raleigh 28 arb 159 9.1 2.7 +32.0
Julio Rodríguez 24 arb 160 5.7 20.2 +1.7
Bryan Woo 25 pre-arb 30 3.6 0.8 +13.1
Randy Arozarena 30 arb 160 2.9 11.3 -0.2
J.P. Crawford 30 FA-elig 157 2.8 11.0 -0.2
Jorge Polanco 31 FA-elig 138 2.6 9.5 +0.6
Luis Castillo 32 FA-elig 32 2.6 24.1 -14.1
Logan Gilbert 28 arb 25 2.6 7.6 +2.1
George Kirby 27 pre-arb 23 2.4 4.3 +4.9
Andrés Muñoz 26 arb 64 1.9 2.7 +4.6
Josh Naylor↔ ARI 28 arb 54 1.8 2.6 +4.2
Gabe Speier 30 arb 76 1.7 0.8 +5.7
Dominic Canzone 27 pre-arb 82 1.5 0.6 +5.1
Matt Brash 27 pre-arb 53 0.8 0.8 +2.2
Leo Rivas 27 – 48 0.8 – –
Eugenio Suárez↔ ARI 33 FA-elig 53 0.7 3.4 -0.5
Eduard Bazardo 29 pre-arb 73 0.5 0.9 +1.1
Ben Williamson 24 – 85 0.4 0.5 +1.0
Miles Mastrobuoni 29 pre-arb 76 0.3 0.6 +0.4
Collin Snider 29 pre-arb 24 0.2 0.5 +0.3
Luke Raley 30 pre-arb 73 0.2 0.8 -0.1
Luke Jackson↔ DET 33 FA-elig 10 0.2 0.2 +0.4
Caleb Ferguson↔ PIT 28 FA-elig 25 0.1 0.7 -0.2
Juan Burgos↔ ARI 25 – 4 0.1 0.1 +0.3
Donovan Solano↔ TEX 37 – 69 0.0 3.4 -3.3
Ryan Bliss 25 pre-arb 11 0.0 0.8 -0.7
Bryce Miller 26 pre-arb 18 0.0 0.8 -0.7
Jhonathan Díaz 28 pre-arb 1 0.0 0.2 -0.1
Casey Lawrence↔ TOR 37 pre-arb 5 0.0 0.1 -0.1
Luis F. Castillo 30 – 2 0.0 – –
Sauryn Lao↔ WSN 25 – 2 -0.0 0.0 -0.1
José Castillo↔ ARI 29 – 3 -0.0 0.0 -0.1
Brandyn Garcia↔ ARI 25 – 2 -0.0 0.0 -0.1
Emerson Hancock 26 pre-arb 22 -0.0 0.6 -0.7
Mitch Garver 34 FA-elig 87 -0.0 12.5 -12.6
Harry Ford 22 – 8 -0.0 0.1 -0.3
Logan Evans 24 – 16 -0.1 0.5 -0.7
Rhylan Thomas 25 – 3 -0.1 0.0 -0.2
Blas Castaño 26 – 1 -0.1 0.1 -0.5
Tayler Saucedo 32 arb 10 -0.1 0.9 -1.3
Casey Legumina 28 pre-arb 48 -0.1 0.6 -1.0
Samad Taylor 26 pre-arb 4 -0.1 0.1 -0.5
Troy Taylor 23 pre-arb 8 -0.2 0.3 -0.9
Dylan Moore↔ TEX 32 – 88 -0.2 2.6 -3.3
Victor Robles 28 FA-elig 32 -0.2 4.1 -4.9
Gregory Santos 25 pre-arb 8 -0.2 0.4 -1.3
Jesse Hahn 35 FA-elig 3 -0.2 0.0 -0.9
Jackson Kowar 28 pre-arb 15 -0.2 0.6 -1.5
Cole Young 21 – 77 -0.3 0.5 -1.5
Trent Thornton 31 arb 33 -0.3 2.0 -3.1
Zach Pop↔ NYM 28 – 4 -0.3 0.1 -1.2
Rowdy Tellez↔ TEX 30 – 62 -0.4 0.7 -2.1
Carlos Vargas 25 pre-arb 70 -0.6 0.8 -3.0
Leody Taveras↔ TEX 26 arb 28 -1.0 1.8 -5.6

54 players appeared (WAR is complete); salary & surplus are on record for 52 of them (96%). Players without a salary show "–" — no single historical salary source is fully complete (especially 2020–2022).

WAR = FanGraphs (fWAR). Green = produced more value than paid (bargain); red = paid more than produced. Service: pre-arb (<3 yr) / arb (3–6) / FA-eligible (6+). Click headers to sort.

History: front-office performance & develop-vs-buy (1985–2024)

Trade ledger (realized WAR, all-time)

Best acquisitions
PlayerYearWAR for SEA
Jamie Moyer199628.0
Mike Cameron200019.8
J. P. Crawford201817.8
Freddy García199815.6
Franklin Gutiérrez200813.4
Mitch Haniger201611.1
Marco Gonzales201710.1
Luis Castillo20228.7
Ones that got away
PlayerYear tradedWAR elsewhere
Adam Jones200829.6
Jason Varitek199721.2
Shin-Soo Choo200619.2
Mike Hampton199319.2
Carlos Guillén200418.3
Derek Lowe199718.0
Freddy Peralta201517.3
Chris Taylor201616.9
Rosternomics — quantifying front-office skill, attribution-clean. Follow @rosternomics on X. Decision-makers on record back to 1933; resource-controlled metrics (WAR & payroll) cover 1985–2026.
Data: FanGraphs (WAR), Baseball-Reference & the Chadwick Bureau register (rosters, IDs), the Lahman Database, Baseball America prospect rankings (via The Baseball Cube), and public payroll records. Transaction and trade data was obtained free of charge from and is copyrighted by Retrosheet. Executive birth/death data via Wikidata (CC0); bios are original. Emoji graphics by OpenMoji (CC BY-SA 4.0).
All figures are franchise-level outcomes credited to the decision-maker in the acquisition year — not solely attributable to one executive.