| Name | Pos | Salary | Through | Years Left | Notes | Years in Majors |
| A. Rhodes | SP | $13,550,000 | 2007 | 4 years left | | 11 years |
| A. Jones | CF | $13,060,050 | 2010 | 7 years left | | 7 years |
| T. Tarasco | SS | $5,890,000 | 2006 | 3 years left | | 6 years |
| D. Bell | 3B | $4,528,571 | 2004 | 1 years left | Arbitration (Estimate: $2,850,000), could become Free Agent with 86 more days of service this year. | 5 years |
| J. Hernandez | 3B | $3,050,000 | 2004 | 1 years left | Free agent after this season! | 10 years |
| R. Mondesi | CF | $2,550,000 | 2006 | 3 years left | | 10 years |
| B. Lawrence | SP | $2,257,143 | 2004 | 1 years left | Arbitration (Estimate: $3,220,000) | 4 years |
| C. Lidle | SP | $2,135,714 | 2004 | 1 years left | Arbitration (Estimate: $300,000) | 3 years |
| J. Valentin | SS | $2,050,500 | 2005 | 2 years left | | 10 years |
| T. Percival | MR | $2,010,000 | 2007 | 4 years left | | 10 years |
| J. Cummings | MR | $1,068,000 | 2004 | 1 years left | Arbitration (Estimate: $2,140,000) | 3 years |
| M. Lewis | 2B | $555,500 | 2004 | 1 years left | Extension signed. | 11 years |
| E. Perez | 1B | $500,000 | 2005 | 2 years left | | 7 years |
| G. Bennett | C | $350,000 | 2004 | 1 years left | Arbitration (Estimate: $300,000), could become Free Agent with 113 more days of service this year. | 5 years |
| B. Koch | CL | $350,000 | 2004 | 1 years left | Arbitration (Estimate: $540,000) | 4 years |
| E. Durazo | 1B | $350,000 | 2004 | 1 years left | Arbitration (Estimate: $1,990,000) | 4 years |
| H. Perry | 3B | $325,000 | 2004 | 1 years left | Extension signed. | 7 years |
| B. Hart | SS | $300,000 | 2004 | 1 years left | Automatic Resign. | 0 years |
| J. Bard | C | $300,000 | 2004 | 1 years left | Automatic Resign. | 0 years |
| S. Lydy | CF | $300,000 | 2004 | 1 years left | Arbitration (Estimate: $300,000) | 3 years |
| D. Sanchez | MR | $300,000 | 2004 | 1 years left | Automatic Resign. | 1 years |
| J. Hansen | 3B | $300,000 | 2004 | 1 years left | Automatic Resign. | 0 years |
| D. Elder | MR | $300,000 | 2004 | 1 years left | Possible Arbitration, 172 more days of service needed this year. | 2 years |
| B. Lidge | CL | $300,000 | 2004 | 1 years left | Arbitration (Estimate: $1,340,000) | 3 years |
| R. Biddle | SP | $300,000 | 2004 | 1 years left | Automatic Resign. | 1 years |
| J. Witasick | SP | $300,000 | 2004 | 1 years left | Possible Arbitration, 108 more days of service needed this year. | 2 years |
| J. Molina | C | $300,000 | 2004 | 1 years left | Arbitration (Estimate: $300,000) | 3 years |
| J. Marquis | SP | $300,000 | 2004 | 1 years left | Arbitration (Estimate: $3,360,000) | 3 years |
| S. Atchison | MR | $300,000 | 2004 | 1 years left | Automatic Resign. | 0 years |
| B. Henry | MR | $300,000 | 2004 | 1 years left | Extension signed. | 8 years |
| M. Ellis | 2B | $300,000 | 2004 | 1 years left | Automatic Resign. | 0 years |
| M. Rivera | C | $300,000 | 2004 | 1 years left | Automatic Resign. | 0 years |
| C. Bootcheck | MR | $300,000 | 2004 | 1 years left | Automatic Resign. | 0 years |
| J. Phelps | LF | $300,000 | 2004 | 1 years left | Automatic Resign. | 1 years |
| B. Lyon | SP | $300,000 | 2004 | 1 years left | Arbitration (Estimate: $6,010,000) | 3 years |
| J. Thompson | SP | Minor-League-Contract | - | - | | 0 years |
| R. Weeks | 2B | Minor-League-Contract | - | - | | 0 years |
| J. Leone | 3B | Minor-League-Contract | - | - | | 0 years |
| C. Fonville | LF | Minor-League-Contract | - | - | | 0 years |
| M. Meluskey | C | Minor-League-Contract | - | - | | 0 years |
| R. Castro | 3B | Minor-League-Contract | - | - | | 0 years |
| C. Snyder | C | Minor-League-Contract | - | - | | 0 years |
| M. Rose | C | Minor-League-Contract | - | - | | 0 years |
| F. Brooks | MR | Minor-League-Contract | - | - | | 0 years |
| J. Bates | SS | Minor-League-Contract | - | - | | 0 years |
| T. Ritchie | SP | Minor-League-Contract | - | - | | 0 years |
| R. Ortiz | SP | Minor-League-Contract | - | - | | 0 years |
| T. Dawkins | SS | Minor-League-Contract | - | - | | 0 years |
| A. Heilman | SP | Minor-League-Contract | - | - | | 0 years |
| K. Rueter | SP | Minor-League-Contract | - | - | | 0 years |
| J. Canizaro | 1B | Minor-League-Contract | - | - | | 0 years |
| C. Nitkowski | SP | Minor-League-Contract | - | - | | 3 years |
| G. Arias | 1B | Minor-League-Contract | - | - | | 0 years |
| C. Sexton | SS | Minor-League-Contract | - | - | | 1 years |
| C. Cairncross | MR | Minor-League-Contract | - | - | | 0 years |
| T. Dunwoody | LF | Minor-League-Contract | - | - | | 0 years |
| A. Mcdill | MR | Minor-League-Contract | - | - | | 0 years |
| B. Radke | SP | Minor-League-Contract | - | - | | 0 years |
| D. Klassen | 1B | Minor-League-Contract | - | - | | 0 years |
| R. Radmanovich | RF | Minor-League-Contract | - | - | | 0 years |
| S. Runyan | MR | Minor-League-Contract | - | - | | 0 years |
| G. Rath | MR | Minor-League-Contract | - | - | | 0 years |
| J. Ryan | SP | Minor-League-Contract | - | - | | 0 years |
| M. Ginter | SP | Minor-League-Contract | - | - | | 0 years |
| A. Levrault | MR | Minor-League-Contract | - | - | | 0 years |
| R. Cancel | C | Minor-League-Contract | - | - | | 0 years |
| F. German | MR | Minor-League-Contract | - | - | | 0 years |
| J. Brunette | MR | Minor-League-Contract | - | - | | 0 years |
| M. Jones | SP | Minor-League-Contract | - | - | | 0 years |
| L. Collier | LF | Minor-League-Contract | - | - | | 0 years |
| M. Buddie | MR | Minor-League-Contract | - | - | | 1 years |
| N. Punto | 2B | Minor-League-Contract | - | - | | 0 years |
| L. Mitchell | MR | Minor-League-Contract | - | - | | 1 years |
| J. Osting | SP | Minor-League-Contract | - | - | | 0 years |
| C. Parker | SP | Minor-League-Contract | - | - | | 0 years |
| M. Moore | MR | Minor-League-Contract | - | - | | 2 years |
| R. Becker | CF | Minor-League-Contract | - | - | | 0 years |
| R. Johnson | CF | Minor-League-Contract | - | - | | 0 years |
| T. Gregorio | C | Minor-League-Contract | - | - | | 0 years |
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