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.
| Jacob Cooke | White | BJJ Lotus Club |
| Jacob Cooper | White | Extreme Mixed Martial Arts Chadstone |
| Jacob Cumberworth | White | VANGUARD JIU JITSU |
| Jacob Cutler | Brown | SOUTHSIDE BRAZILIAN JIU-JITSU OFFICIAL |
| Jacob Damevski | Yellow | Oasis Fight Academy |
| Jacob Daniel Davison | Yellow | Legends Brazilian Jiu Jitsu Australia |
| Jacob Davis | Blue | Gamebred Academy Grappling Team |
| Jacob Davison | Yellow | Legends Brazilian Jiu Jitsu Australia |
| Jacob Derbyshire | Yellow | Bushido Academy |
| Jacob Doyle | White | Team Compton |
| Jacob Duffy | White | M16/Beachside Jiu-Jitsu |
| Jacob Dunstan | White | SHUGYO JIU JITSU |
| Jacob Duscas | Blue | Armour Brazilian Jiujitsu |
| Jacob Duting | White | Gracie Barra Prospect |
| Jacob Eddy | White | Grand Martial Arts |
| Jacob Elliott | White | Instinct BJJ |
| Jacob Evans | White | Cia Paulista Australia |
| Jacob Everingham | White | The Agoge Brazilian Jiu-Jitsu |
| Jacob Falola | Grey | Harlequin's Brazilian Jiu-Jitsu |
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