People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now. See Australian BJJ rankings for recorded wins by belt, state, and ruleset.
| Declan Brown | Grey | Base Training Centre |
| Declan Cox | White | GRACIE BARRA CAMPBELLTOWN |
| Declan Davis | White | Gracie Barra Edgeworth |
| Declan Dewar | White | Mackay MMA |
| Declan Gannon | Brown | Grappling Technics |
| Declan Gardiner | White | Adept MMA |
| Declan Gardner | Yellow | Iconic Jiu Jitsu |
| Declan Herbert | White | 5th Wave BJJ |
| Declan Hicks | White | Gracie Barra Broadbeach |
| Declan Hii | Unknown belt | Melbourne Jiu -Jitsu Academy |
| Declan Himford | Blue | Top Martial Arts Academy |
| Declan Hynes | White | Adrenaline MMA & Fitness |
| Declan Jusuf | White | Gracie Botany |
| Declan Laxton | White | CAZA BJJ Australia |
| Declan Lewis | White | Gracie Barra Tamworth (AU) |
| Declan Lombard | Brown | Will Machado - Comp Team |
| Declan Lukman | Grey | Gracie Barra Artarmon |
| Declan Lyons | White | Kings MMA |
| Declan Maddock | White | Frontline Australia |
Matstories