I know this has been done before, but I have made this a bit different.
No one is aware of who they're fighting (surprise fight basically)
Each get 10 min of prep
Win by K.O
Both are aware of each others fighting skills (only)
Each get 15 min of prep
Win by K.O/nearly killed
Daredevil is using a staff from his billy club
Batman has 1 smoke grenade, 3 batarangs and a grappling gun
Fight takes place in gladiator arena in Rome.