Sellout Watcher

How fast do Park & Rec classes sell out? Plan registration day instead of refreshing in a panic.

Hello, I'm MK, an Arlington parent. I've missed a few class registrations for my kid over the last few seasons because I assumed logging in twenty minutes after the window opened was fine. It turned out some sections sell out in seconds while others sit open for weeks, and the catalog gives no signal which is which! I built this site to give other residents that visibility.

Questions or suggestions: [email protected]

For example, in Arlington's Summer 2026 window

Counties tracked

Arlington County, VA

Vermont Systems WebTrac · Summer 2026 registration windows opened May 12–14

Read the Summer 2026 analysis → Live dashboard

Coming over the next year: Arlington's fall, winter, and spring registrations, plus a couple of nearby counties.

How the data works

Each county's public registration system is checked on a schedule that ramps up around the time a window opens and tapers off in the days after. We record each section's status (Available / Waitlist / Full) over time and derive how long it took to sell out.

Anything that sold out faster than we could measure shows up as "Instant (<20 min)" — treat that as a "you needed to be ready before noon" floor, not a measured duration.