Parks don't need players. They need to know the wait.

12 grassroots case studies, from parkrun to Partiful, pointed to one pattern: people join because of who invites them, not what the product does.

Time in the parks changed the pitch. NYC courts are never empty, so "find a game" solves nothing. "Know the wait" does. The flyer led with that, promised only what version one could do, and invited players to be "one of the first in."

The in-park kit: a printed flyer.