Below is a list of maps in the random map pool for PlaneBall.com ladder.  More popular maps are included multiple times in the random pool, so they are played more frequently.

MapRandom Count
4antre2
4arrow1
4asteroids2
4carpia1
4cave2
4cliff2
4coal2
4core1
4cross1
4cryptic1
4den2
4doodle1
4empire2
4firepark2
4galatea2
4greycomb1
4grotto2
4ice2
4illumination2
4kessler2
4lostcity1
4maze1
4midnight2
4pegglies1
4planepark2
4reef1
4sanctum2
4skylands2
4snow2
4solarbattle2
4spelunk2
4swarm1
4ufos2
4volcano1
4warehouse2
4woods1
antre_pb3
asteroids_pb5
bricks_pb1
cave_pb5
cliff_pb2
core_pb2
cross_pb2
den_pb4
funnelpark_pb1
galatea_pb2
geometry_pb1
grotto_pb4
hardcourt2_pb2
ice_pb4
illumination_pb3
labyrinth_pb2
mayhem2_pb4
maze_pb2
planepark_pb4
reef_pb3
skylands_pb3
snow_pb3