Pickleball is played at various skill levels starting with beginner players just learning the game to highly skilled players playing at a professional level. Those levels are described as starting at 1.0 or 2.0 and rising up to 5.0 or 5.5+.
In The Grand, our 22 courts are divided according to level of play beginning with the skill-level of 2.0 being played on the lower numbered courts and rising to the skill-level of 5.0+ being played on the higher numbered courts.
See the court layout map here: http://pball.grandpickleball.org/Menu-Courts/CourtMapLayout.pdf
Skill level definitions can be found on the USA Pickleball website here: https://usapickleball.org/tournaments/tournament-player-ratings/player-skill-rating-definitions/