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Arlington, Va. · Wednesday, Oct. 7 · 38 boutique studios

Open Spots

3,431 people booked a fitness class in Arlington on Wednesday, Oct. 7. Every figure here is one of them.

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The studios offered them 7,693 spots across 318 classes: mats, reformers, bikes and floor space, laid out here by the hour, from the 5 a.m. classes at the front to the 9 p.m. classes at the back.

Then everyone heads to class.

When the doors close, 4,262 spots are still open. Only 45% of the day's spots were taken.

The early classes come closest to full. At 6 and 7 a.m., 51% of spots were booked.

Then the floor empties out. From 10 a.m. to 3 p.m., 59 classes filled just 31% of their spots.

After work it fills back up: 51% of spots taken in the 5 and 6 p.m. classes.

Pilates is the exception. Its classes were 58% full, and 18 of the day's 28 sold-out classes were pilates.

At [solidcore] Court House, 11 people stood on the waitlist for a 6:30 a.m. class with 14 spots.

HIIT and strength has the most room to spare: 3,651 spots, 39% full. Burn Boot Camp alone listed 575 spots across 9 classes and filled 110.

Now sort the same floor by studio. Seen from above, each row is one brand, fullest at the top.

Orangetheory, F45 and Barry's all sell a group interval workout. They run it very differently.

Barry's ran 5 classes in 52-person rooms: 58% full, about 30 people a class. Orangetheory ran 26 classes at 29% full, about 7 people in each. F45 sat between: 38%, about 11 a class.

The fullest rooms are the small ones. StarFit, with 10 spots a class, and Club Pilates, with 12, were both 85% full.

And 9 classes ran on the schedule with nobody booked at all.

That's one Wednesday. Walk the floor, click any class to see who showed up, or switch days to compare.