Rosternomics
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Mariners SEA

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

2024 roster — every player, value & surplus

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+4.8
WAB — wins above budget
+5.4
TAB — roster Talent above budget
85–77 (0.525)
record
+17M
surplus $M (value/$)
38.0
roster fWAR
$141.0M
payroll
PlayerAgeServiceGfWARSalary $MSurplus $M
Cal Raleigh 27 arb 153 5.4 0.8 +21.7
George Kirby 26 pre-arb 33 4.1 0.8 +16.5
Logan Gilbert 27 arb 33 4.0 4.0 +12.7
Julio Rodríguez 23 pre-arb 143 3.9 12.2 +4.3
Victor Robles↔ WSN 27 FA-elig 77 3.2 2.2 +11.1
Bryce Miller 25 pre-arb 31 2.7 0.8 +10.7
Dylan Moore 31 arb 135 2.4 3.1 +6.9
Luis Castillo 31 FA-elig 30 2.3 24.1 -14.6
Luke Raley 29 arb 137 2.3 0.8 +8.7
Bryan Woo 24 pre-arb 22 2.2 0.7 +8.6
Josh Rojas 30 arb 143 1.8 3.1 +4.5
J.P. Crawford 29 FA-elig 105 1.6 11.0 -4.2
Randy Arozarena↔ TBR 29 arb 54 0.9 2.8 +1.1
Justin Turner↔ TOR 39 FA-elig 48 0.7 4.5 -1.6
Andrés Muñoz 25 arb 60 0.6 2.2 +0.4
Trent Thornton 30 arb 71 0.6 1.2 +1.2
Collin Snider 28 pre-arb 42 0.5 0.7 +1.2
Ryan Bliss 24 pre-arb 33 0.4 0.7 +1.1
Eduard Bazardo 28 arb 23 0.3 0.9 +0.3
Jorge Polanco 30 FA-elig 118 0.3 10.5 -9.4
Luis Urías 27 FA-elig 41 0.2 5.0 -4.2
Tayler Saucedo 31 arb 53 0.2 0.8 +0.1
Gregory Santos 24 arb 8 0.2 0.8 +0.1
Gabe Speier 29 arb 29 0.2 0.8 +0.0
Leo Rivas 26 pre-arb 43 0.1 0.7 -0.4
Dominic Canzone 26 pre-arb 67 0.1 0.7 -0.5
Samad Taylor 25 pre-arb 3 0.0 0.7 -0.6
Cade Marlowe 27 pre-arb 8 0.0 0.7 -0.6
Tyson Miller↔ CHC 28 arb 9 0.0 0.1 -0.0
Ryne Stanek↔ NYM 32 FA-elig 46 0.0 2.9 -2.8
Jonathan Hernández↔ TEX 27 arb 3 0.0 0.1 -0.1
Brett de Geus↔ MIA 26 arb 4 0.0 0.2 -0.2
Kirby Snead 29 pre-arb 11 -0.0 0.1 -0.2
Austin Voth 32 FA-elig 68 -0.0 1.2 -1.3
Troy Taylor 22 – 21 -0.0 0.2 -0.2
Seby Zavala 30 arb 18 -0.0 0.8 -0.9
Jhonathan Díaz 27 arb 5 -0.1 0.7 -1.0
Cody Bolton 26 pre-arb 17 -0.1 0.7 -1.0
JT Chargois↔ MIA 33 FA-elig 21 -0.1 0.7 -1.1
Matt Bowman↔ ARI 33 FA-elig 1 -0.1 0.0 -0.6
Jonatan Clase↔ TOR 22 pre-arb 19 -0.2 0.5 -1.2
Jason Vosler 30 pre-arb 10 -0.2 0.1 -0.8
Tyler Locklear 23 pre-arb 16 -0.2 0.7 -1.5
Ty France↔ CIN 29 arb 88 -0.2 4.3 -5.2
Sam Haggerty 30 arb 8 -0.2 0.9 -1.8
Yimi García↔ TOR 33 FA-elig 10 -0.4 1.5 -3.1
Emerson Hancock 25 pre-arb 12 -0.4 0.7 -2.4
Mitch Garver 33 FA-elig 114 -0.4 10.5 -12.1
Mike Baumann↔ ANA 28 arb 18 -0.4 0.2 -1.9
Mitch Haniger 33 FA-elig 121 -0.5 16.0 -18.1

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.