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
4antre1
4arrow1
4asteroids1
4carpia1
4cave1
4cliff1
4core1
4cross1
4cryptic1
4doodle1
4empire1
4firepark1
4galatea1
4grotto1
4illumination1
4kessler1
4lostcity1
4maze1
4midnight1
4planepark1
4reef1
4sanctum1
4snow1
4swarm1
4ufos1
4volcano1
4warehouse1
4woods1
antre_pb2
asteroids_pb3
bricks_pb1
cave_pb3
cliff_pb2
core_pb2
cross_pb2
empire_pb2
funnelpark_pb2
galatea_pb2
grotto_pb3
hardcourt2_pb2
ice_pb3
illumination_pb2
labyrinth_pb2
laniakea_pb1
lostcity2_pb2
mayhem2_pb3
maze_pb2
planepark_pb3
reef_pb3
skylands_pb3
snow_pb3
ufos_pb2