Baseball Roster for 2003 San Jose Giants
| # | Player Name | Pos | Age | B | T | Ht | Wt | Born | Place | High Level | mlbYears |
| David Aardsma | P | 21 | R | R | 6-5 | 200 | 12/27/1981 | Denver,Colorado | MLB | 2004-2010 |
| Tim Alvarez | P | 22 | L | L | 6-4 | 235 | 1/5/1981 | Palmdale,California | A+ | - |
| Keith Anderson | C | 24 | R | R | 6-1 | 205 | 1/6/1979 | Escondido,California | AAA | - |
| Chris Begg | P | 23 | R | R | 6-4 | 195 | 9/12/1979 | Uxbridge,Ontario | AAA | - |
| Marvin Benard | CF-RF | 33 | L | L | 5-9 | 185 | 1/20/1970 | Bluefields,Nicaragua | MLB | 1995-2003 |
| Julian Benavidez | IF | 21 | R | R | 6-2 | 200 | 4/14/1982 | Oakland,California | AA | - |
| Elliot Brown | P | 28 | B | R | 6-2 | 191 | 6/7/1975 | Metairie,Louisiana | AAA | - |
| Greg Bruso | P | 23 | R | R | 6-3 | 190 | 5/5/1980 | Thousand Oaks,California | AA | - |
| Brian Burres | P | 22 | L | L | 6-1 | 165 | 4/8/1981 | Oregon City,Oregon | MLB | 2006-2011 |
| Bryan Carter | OF | 25 | L | L | 6-0 | 194 | 2/25/1978 | Cincinnati,Ohio | AA | - |
| Angel Chavez | IF | 21 | R | R | 6-0 | 175 | 7/22/1981 | David,Panama | MLB | 2005-2005 |
| Jason Christiansen | P | 33 | R | L | 6-5 | 241 | 9/21/1969 | Omaha,Nebraska | MLB | 1995-2005 |
| Jeff Clark | P | 23 | R | R | 6-6 | 240 | 5/6/1980 | Norwich,Connecticut | AA | - |
| Julio Cordido | IF | 22 | R | R | 6-1 | 192 | 7/30/1980 | Caracas,Venezuela | AAA | - |
| Josh Cram | P | 22 | R | R | 6-2 | 200 | 8/22/1980 | Edmos,Washington | A+ | - |
| Branden Florence | OF | 25 | R | R | 6-0 | 200 | 4/3/1978 | Tacoma,Washington | AA | - |
| Jesse Foppert | P | 22 | R | R | 6-6 | 210 | 7/10/1980 | Reading,Pennsylvania | MLB | 2003-2005 |
| James Garcia | P | 23 | R | R | 6-0 | 210 | 2/3/1980 | Torrance,California | AAA | - |
| Chris George | P | 22 | R | R | 6-1 | 180 | 10/13/1980 | Santa Cruz,California | A+ | - |
| Kyle Gross | P | 24 | R | R | 6-4 | 212 | 12/11/1978 | Walnut Creek,California | A+ | - |
| Ryan Hannaman | P | 21 | L | L | 6-3 | 190 | 8/28/1981 | Mobile,Alabama | A+ | - |
| Clay Hensley | P | 23 | R | R | 5-11 | 175 | 8/31/1979 | Tomball,Texas | MLB | 2005-2011 |
| Micah Holst | OF | 26 | R | R | 6-2 | 200 | 3/5/1977 | St. Joseph,Missouri | AAA | - |
| Wes Hutchison | P | 24 | R | R | 6-1 | 195 | 5/31/1979 | Winter Haven,Florida | AAA | - |
| Justin Knoedler | P | 22 | R | R | 6-2 | 205 | 7/17/1980 | Springfield,Illinois | MLB | 2004-2006 |
| Jay Knowlton | SS | 23 | R | R | 6-1 | 200 | 12/8/1979 | Milwaukie,Oregon | AA | - |
| Francisco Liriano | P | 19 | L | L | 6-2 | 185 | 10/26/1983 | San Cristobal,Dominican Republic | MLB | 2005-2011 |
| Trey Lunsford | C | 24 | R | R | 6-1 | 195 | 5/25/1979 | Odessa,Texas | MLB | 2002-2003 |
| Jackson Markert | P | 24 | R | R | 6-6 | 215 | 2/9/1979 | Tulsa,Oklahoma | AA | - |
| Sean Martin | P | 23 | R | R | 6-1 | 190 | 3/27/1980 | Tucson,Arizona | A+ | - |
| Derin McMains | 2B | 23 | B | R | 6-0 | 180 | 11/3/1979 | Oskaloosa,Iowa | AAA | - |
| Daniel Ortmeier | OF | 22 | R | L | 6-4 | 225 | 5/11/1981 | Chattanooga,Tennessee | MLB | 2005-2008 |
| Daniel Padgett | P | 25 | L | L | 6-0 | 170 | 1/7/1978 | Milwaukee,Wisconsin | A+ | - |
| Anthony Pannone | P | 21 | R | R | 6-3 | 210 | 7/7/1981 | Anaheim,California | AAA | - |
| Julio Pavon | P | 27 | R | R | 6-2 | 165 | 6/14/1976 | Granada,Nicaragua | AAA | - |
| Rafael Rigueiro | P | 26 | R | R | 6-6 | 200 | 5/20/1977 | Riverside,California | A+ | - |
| Jeremy Schmidt | P | 23 | R | R | 6-2 | 190 | 11/15/1979 | West Allis,Wisconsin | AA | - |
| Aaron Sobieraj | 2B | 22 | R | R | 6-1 | 192 | 6/3/1981 | Buffalo,New York | A+ | - |
| Ramon Soler | 2B | 25 | B | R | 6-0 | 175 | 9/19/1977 | Las Caboas,Dominican Republic | AAA | - |
| Zach Strong | 3B | 22 | B | R | 6-3 | 200 | 6/3/1981 | Albuquerque,New Mexico | AAA | - |
| John Thomas | P | 21 | L | L | 6-2 | 190 | 7/24/1981 | Santa Maria,California | AAA | - |
| Brion Treadway | P | 24 | R | R | 6-4 | 200 | 4/1/1979 | Hamilton,Ohio | AA | - |
| Dan Trumble | OF | 23 | R | R | 6-2 | 205 | 9/29/1979 | Nampa,Idaho | AA | - |
| Anthony Turco | C | 23 | L | R | 5-9 | 175 | 10/8/1979 | Worcester,Massachusetts | AA | - |
| Kevin Vent | P | 26 | R | R | 6-0 | 185 | 6/1/1977 | Maumelle,Arkansas | AAA | - |
| Tyler Von Schell | 1B | 23 | R | R | 6-3 | 215 | 7/7/1979 | Santa Rosa,California | AAA | - |
| Ben Washburn | P | 24 | R | R | 6-2 | 200 | 5/17/1979 | Portland,Oregon | A+ | - |
| Chad Zerbe | P | 31 | L | L | 6-0 | 200 | 4/27/1972 | Findlay,Ohio | MLB | 2000-2003 |
Team Personnel