2003 Natural Universe - INBA
| Overall Winner Philip Ricardo Jr | |
Tall | |
| 1 | Sammy Sisk (United States) |
| 2 | Alexander Denk (United States) |
| 3 | Kirk Wilson (United States) |
Medium-Tall | |
| 1 | Brad Walker (United States) |
| 2 | Ron Page (United States) |
| 3 | Antonio Garcia (United States) |
Medium | |
| 1 | Philip Ricardo Jr (United States) |
| 2 | Stan Tautalanoa (New Zealand) |
| 3 | James Nanney (United States) |
Short | |
| 1 | Troy Craig (United States) |
| 2 | Donovan Hartwell (United States) |
| 3 | Jason Fung (United States) |
Teen | |
| 1 | Tee Popoola (United States) |
| 2 | Don Fowler (United States) |
| 3 | Brad Gwinn (United States) |
Masters Overall Winner James Nanney | |
Masters Tall | |
| 1 | Brad Walker (United States) |
| 2 | Kirk Wilson (United States) |
| 3 | Ron Page (United States) |
Masters Short | |
| 1 | James Nanney (United States) |
| 2 | Mark Taylor (1) (United States) |
| 3 | Charles Blanks (United States) |
Masters 35+ | |
| 1 | Donovan Hartwell (United States) |
| 2 | Alexander Denk (United States) |
| 3 | Michael Larry (United States) |
Grand Masters | |
| 1 | Ron Mango (United States) |
UltraGrandMasters | |
| 1 | Paul Devine (United States) |
| 2 | Ron Suich (United States) |
Physically Challenged Seated | |
| 1 | Paul O'Brien (Australia) |
| 2 | Ron Miner (United States) |
| 3 | Jim Chadwell (United States) |
Professional | |
| 1 | Philip Ricardo Jr (United States) |
| 2 | David Whittaker (United States) |
| 3 | Larry Vinette (Canada) |