I know that there is no MMA Math but I will say what I think:
Brock beated everyone.
Cain beats Brock.
JDS beats Cain.
Brock fight JDS and is able to take him down and get an UD.
So I think he can do it again.
ALL TIME P4P: 1. Achilles 2. King Arthur 3. Miyamoto Musashi 4. Roberto Duran 5. Fedor Emelianenko