Rosternomics
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Athletics OAK

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GM: David Forst (since 2016)

2018 roster — every player, value & surplus

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+22.0
WAB — wins above budget
+15.3
TAB — roster Talent above budget
97–65 (0.599)
record · made playoffs
+70M
surplus $M (value/$)
43.0
roster fWAR
$76.6M
payroll
PlayerAgeServiceGfWARSalary $MSurplus $M
Matt Chapman 25 pre-arb 145 6.4 0.5 +21.2
Jed Lowrie 34 FA-elig 157 5.1 6.0 +11.3
Blake Treinen 30 arb 68 3.6 2.1 +10.1
Stephen Piscotty 27 arb 151 3.2 1.3 +9.7
Khris Davis 30 arb 151 2.9 10.5 -0.5
Marcus Semien 27 arb 159 2.9 3.1 +6.8
Matt Olson 24 pre-arb 162 2.8 0.5 +9.0
Trevor Cahill 30 FA-elig 21 2.0 1.5 +5.3
Chad Pinder 26 pre-arb 110 1.9 0.6 +5.9
Mark Canha 29 pre-arb 122 1.9 0.5 +6.0
Ramón Laureano 23 – 48 1.9 0.2 +6.2
Sean Manaea 26 pre-arb 27 1.8 0.6 +5.6
Nick Martini 28 – 55 1.2 0.2 +3.8
Brett Anderson 30 FA-elig 17 0.9 0.1 +3.0
Frankie Montas 25 pre-arb 13 0.8 0.2 +2.6
Edwin Jackson 34 FA-elig 17 0.7 1.5 +0.9
Jeurys Familia↔ NYM 28 FA-elig 30 0.7 3.4 -1.0
Lou Trivino 26 – 69 0.6 0.5 +1.7
Yusmeiro Petit 33 FA-elig 74 0.6 3.5 -1.4
Ryan Buchter 31 arb 54 0.6 0.6 +1.5
Daniel Mengden 25 pre-arb 22 0.6 0.5 +1.4
Chris Bassitt 29 pre-arb 11 0.6 0.2 +1.8
Paul Blackburn 24 pre-arb 6 0.5 0.5 +1.2
Shawn Kelley↔ WSN 34 FA-elig 19 0.5 1.9 -0.3
Franklin Barreto 22 pre-arb 32 0.4 0.3 +1.1
Jonathan Lucroy 32 FA-elig 126 0.3 6.5 -5.5
Ryan Dull 28 arb 28 0.2 0.6 +0.2
J.B. Wendelken 25 – 13 0.2 0.2 +0.5
Andrew Triggs 29 pre-arb 9 0.2 0.6 +0.1
Matt Joyce 33 FA-elig 83 0.2 6.0 -5.5
Mike Fiers↔ DET 33 FA-elig 10 0.1 1.9 -1.5
Liam Hendriks 29 FA-elig 25 0.1 1.9 -1.7
Santiago Casilla 37 FA-elig 26 0.1 6.0 -5.8
Beau Taylor 28 – 7 0.0 0.1 +0.1
Cory Gearrin↔ SFG 32 FA-elig 6 0.0 0.2 -0.1
Josh Lucas 27 pre-arb 8 -0.0 0.1 -0.1
Jeremy Bleich 31 – 2 -0.0 0.0 -0.0
Aaron Brooks 28 pre-arb 3 -0.0 0.5 -0.6
Carlos Ramírez↔ TOR 27 pre-arb 3 -0.0 0.0 -0.1
Fernando Rodney↔ MIN 41 FA-elig 22 -0.0 1.4 -1.5
Dean Kiekhefer 29 – 4 -0.1 0.1 -0.4
Boog Powell 25 pre-arb 7 -0.2 0.5 -1.1
Trayce Thompson↔ CHW 27 – 3 -0.2 0.0 -0.6
Emilio Pagán 27 pre-arb 55 -0.2 0.5 -1.1
Josh Phegley 30 arb 39 -0.2 0.9 -1.5
Daniel Gossett 25 pre-arb 5 -0.2 0.5 -1.3
Danny Coulombe 28 arb 27 -0.2 0.6 -1.3
Jake Smolinski 29 arb 20 -0.2 0.8 -1.6
Wilmer Font↔ LAD 28 FA-elig 4 -0.3 0.1 -1.0
Bruce Maxwell 27 pre-arb 18 -0.3 0.6 -1.5
Kendall Graveman 27 arb 7 -0.4 2.4 -3.6
Chris Hatcher 33 FA-elig 34 -0.4 2.1 -3.6
Dustin Fowler 23 pre-arb 69 -0.6 0.5 -2.4

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 OAK
Rickey Henderson198926.8
Mark Ellis200122.1
Dennis Eckersley198719.3
Carney Lansford198216.7
Josh Donaldson200813.8
Jed Lowrie201313.0
Brett Anderson200711.5
Sean Manaea201511.2
Ones that got away
PlayerYear tradedWAR elsewhere
Rickey Henderson198426.6
Carlos González200824.7
Andre Ethier200524.4
Gio Gonzalez201120.8
Josh Donaldson201420.4
Mark McGwire199719.7
Aaron Harang200319.3
Jeremy Bonderman200215.8
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.