do blobbydude1 :No. They had a inside friend for this shoot. The statium was most likley not used much, or off season and the owners had no idea what it was used for because they were just allowed in by a staff member. They paid the caretaker staff member probably a few thousand and free front row show. Pretty easy really. I know because a school locker room was used and just one choach got paid to give them the key for two nights they only paid a thousand or so. The scene was in the girls locker room, it was during a weekend when school was still going on so there was girls stuff in the locker room. The crew didn't even clean up after they just threw trash away and stuff. They actually opened girls lockers and some stuff was reported lost. There was nothing anyone could do.
Back in the day when porn was flush with cash from the home video market and could just randomly do shit like this - rent an actual football field, cast a bunch of guys to gangbang one girl in the middle of the field, and then give those dudes personalized football jerseys worn over actual pads. Then, on top of all that, this isn't even the centerpiece of the movie you're making. It's just the second half of a gangbang video. You've still got to pay 2 girls and a bunch of guys and whatever production costs you incur for the first scene starring Gauge and Olivia Saint.