Assigning matches to courts is the most contested daily decision at a tennis tournament. Every court has a different value and there are never enough good ones.
Courts are not equivalent products
A show court offers broadcast coverage, a large audience and better facilities. An outside court offers proximity and little else.
Players notice the difference in preparation as much as in atmosphere. Warmup areas, walkways and the wait before entering a show court are all distinct.
Because the difference is real, assignment functions as a public judgment about a match's importance, whatever the tournament says about it.
Ticket holders have contractual claims
Show court tickets are sold at a premium on the promise of quality tennis. A session filled with short, one-sided matches generates real complaints.
Ground pass holders have a competing claim: they have paid to watch tennis and need matches worth watching on the outside courts.
Balancing the two means deliberately placing some attractive matches away from the show courts, which is unpopular with the players concerned.
Broadcast preferences carry weight
Broadcasters pay for access to matches in particular windows, and only some courts carry full production. That limits where a wanted match can be placed.
Time zones matter for international broadcast, which is one reason evening slots at American tournaments are the most contested of the day.
Tournaments rarely acknowledge the influence directly, but the pattern of assignments over a week makes it visible to anyone reading the schedule closely.
Player standing is a soft input
Higher-ranked and more prominent players expect show courts, and tournaments largely accommodate them because ticket demand follows the same names.
Local players receive similar treatment for the same reason. A home competitor fills a stand regardless of ranking.
The friction appears when those preferences conflict with the sporting interest of the match itself, which is where most public disputes originate.
Why the decision cannot be automated
The inputs are genuinely incommensurable: revenue, fairness, broadcast reach and player relations do not reduce to a common measure.
Tournaments therefore make the decision in a room with a small group, and defend it afterwards rather than publishing a formula.
The absence of a rule is not laziness. Any published rule would be gamed within a season, and the discretion is what allows a tournament to correct yesterday's unfairness today.

