GM: David Forst (since 2016)
| Player | Age | Service | G | fWAR | Salary $M | Surplus $M |
|---|---|---|---|---|---|---|
| Nick Kurtz | 23 | pre-arb | 63 | 5.9 | 0.8 | +51.7 |
| Shea Langeliers | 28 | arb | 58 | 5.8 | 5.2 | +46.8 |
| Jacob Wilson | 24 | pre-arb | 39 | 2.7 | 1.4 | +22.7 |
| Zack Gelof | 26 | pre-arb | 48 | 2.5 | 0.7 | +21.8 |
| J.T. Ginn | 27 | pre-arb | 14 | 2.2 | 0.8 | +18.7 |
| Tyler Soderstrom | 24 | pre-arb | 61 | 2.0 | 1.4 | +16.8 |
| Carlos Cortes | 29 | pre-arb | 51 | 1.9 | 0.8 | +15.8 |
| Jack Perkins | 26 | pre-arb | 18 | 1.8 | 0.7 | +15.4 |
| Henry Bolte | 22 | – | 22 | 1.6 | 0.6 | +14.1 |
| Luis Severino | 32 | FA-elig | 12 | 1.5 | 25.0 | -11.6 |
| Mark Leiter Jr. | 35 | – | 28 | 1.2 | – | – |
| Gage Jump | 23 | – | 2 | 1.1 | 0.5 | +8.9 |
| Jeffrey Springs | 33 | FA-elig | 13 | 1.0 | 10.5 | -1.2 |
| Darell Hernaiz | 24 | pre-arb | 47 | 0.8 | 0.8 | +6.8 |
| Luis Medina | 27 | pre-arb | 20 | 0.7 | 0.8 | +5.5 |
| Joel Kuhnel | 31 | pre-arb | 25 | 0.6 | 0.7 | +4.8 |
| Justin Sterner | 29 | pre-arb | 30 | 0.6 | 0.8 | +4.5 |
| Max Muncy | 23 | pre-arb | 26 | 0.4 | 0.8 | +3.1 |
| José Suarez↔ ATL | 28 | arb | 10 | 0.4 | 0.3 | +3.1 |
| Hogan Harris | 29 | pre-arb | 32 | 0.4 | 0.8 | +2.6 |
| Jonah Heim↔ ATL | 31 | arb | 13 | 0.2 | 0.5 | +1.7 |
| Brooks Kriske | 32 | pre-arb | 2 | 0.2 | 0.6 | +1.1 |
| Mason Barnett | 25 | pre-arb | 2 | 0.2 | 0.0 | +1.7 |
| Aaron Civale | 31 | FA-elig | 11 | 0.1 | 6.0 | -4.7 |
| Elvis Alvarado | 27 | pre-arb | 11 | 0.1 | 0.1 | +1.1 |
| Michael Stefanic | 30 | – | 2 | 0.1 | – | – |
| Brett Harris | 28 | pre-arb | 5 | -0.0 | 0.1 | -0.3 |
| Colby Thomas | 25 | pre-arb | 24 | -0.1 | 0.8 | -1.6 |
| Tyler Ferguson | 32 | – | 1 | -0.3 | – | – |
| Brady Basso | 28 | pre-arb | 3 | -0.3 | 0.1 | -2.9 |
| Michael Kelly | 33 | pre-arb | 5 | -0.4 | 0.1 | -3.3 |
| Alika Williams | 27 | pre-arb | 12 | -0.6 | 0.6 | -5.6 |
| Kade Morris | 24 | – | 1 | -0.7 | – | – |
| Scott Barlow | 33 | FA-elig | 29 | -0.7 | 2.0 | -8.3 |
| Denzel Clarke | 26 | pre-arb | 22 | -0.7 | 0.8 | -7.1 |
| Brent Rooker | 31 | arb | 46 | -0.7 | 8.0 | -14.6 |
| Andy Ibáñez↔ NYM | 33 | – | 11 | -0.8 | 0.8 | -7.7 |
| Jeff McNeil | 34 | FA-elig | 60 | -0.8 | 10.0 | -16.9 |
| Jacob Lopez | 28 | pre-arb | 12 | -0.8 | 0.8 | -7.9 |
| Austin Wynns↔ ATL | 35 | – | 14 | -1.3 | – | – |
| Luis Morales | 23 | pre-arb | 3 | -1.4 | 0.1 | -12.3 |
| Lawrence Butler | 25 | pre-arb | 57 | -2.7 | 3.7 | -27.9 |
42 players appeared (WAR is complete); salary & surplus are on record for 37 of them (88%). Players without a salary show "–" — no single historical salary source is fully complete (especially 2020–2022).
WAR = FanGraphs (fWAR), annualized to full-season pace. 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.
| Player | Year | WAR for OAK |
|---|---|---|
| Rickey Henderson | 1989 | 26.8 |
| Mark Ellis | 2001 | 22.1 |
| Dennis Eckersley | 1987 | 19.3 |
| Carney Lansford | 1982 | 16.7 |
| Josh Donaldson | 2008 | 13.8 |
| Jed Lowrie | 2013 | 13.0 |
| Brett Anderson | 2007 | 11.5 |
| Sean Manaea | 2015 | 11.2 |
| Player | Year traded | WAR elsewhere |
|---|---|---|
| Rickey Henderson | 1984 | 26.6 |
| Carlos González | 2008 | 24.7 |
| Andre Ethier | 2005 | 24.4 |
| Gio Gonzalez | 2011 | 20.8 |
| Josh Donaldson | 2014 | 20.4 |
| Mark McGwire | 1997 | 19.7 |
| Aaron Harang | 2003 | 19.3 |
| Jeremy Bonderman | 2002 | 15.8 |