Doctor Doom (616 version) vs the Doom Patrol (pre-Flashpoint versions of the heroes), in the Khazan Arena, using the following arbitrary roster for the Doom Patrol:
Robotman
Rebis the Negative Person
Elasti-Girl
Mento
Beast Boy
Crazy Jane
Danny the Street
Although the battle takes place in the Khazan Arena, the Arena is larger than usual, 1000 feet in diameter. Danny the Street covers the entire floor of the Arena, in the form of a circular road around the perimeter, bisected by a north/south street and an east/west street, with a small open plaza in the center. The plaza is a square that is 100 feet on each side, and Doctor Doom and the Doom Patrol start in opposite corners of the square at the usual default 100 feet. The buildings comprising Danny the Street vary in height from two stories high around the plaza to one story near the perimeter of the Arena.
The Chief is watching the battle via a camera mounted on Robotman's chest, and is in radio communication with Robotman during this rumble.