Yes, but easy has a point.
Dueling Arena connotes a place to "settle a score". The "mano a mano" way to preserve you honor or right a wrong.
Perhaps "Free For All Arena"?
I enjoyed going to the TA and just having at it with a few like minded folks at an out of the way base. Great place to try out new aircraft and push the envelope. Lots of engagements in a very short time frame, lots of opportunity to try new moves and experiment. Easy to work on one particular move until you get it right (or realize it never will work!)
Something not always available in the MA.
Just my .02.