The short answer is 257,327 permanent seats - the largest of any sports venue on earth. But that number answers the wrong question. On race day the figure people actually mean is closer to 400,000, because the infield holds a crowd larger than most stadiums by itself. Below: what each number counts, why they differ by roughly 140,000 people, and how the seating is actually divided.

Ask which sports venue holds the most people and most answers name a stadium. They are all wrong by a wide margin. The answer is a racetrack in Indiana: the Indianapolis Motor Speedway, with a permanent seating capacity of 257,327.

The Two Numbers

  • 257,327 — permanent seats. The highest permanent seating capacity of any sports venue on Earth. Some sources round this to “about 250,000.”
  • ~400,000 — total spectators. Once the infield is opened to fans, total attendance can approach 400,000 for the biggest race days.

How Does It Fit That Many People?

Because it is not shaped like a stadium. A stadium seats people around one field. IMS is a 2.5-mile oval with grandstands running along the circuit — so the seating stretches for miles rather than wrapping a single pitch. Add an infield road course and the enormous open infield itself, and you get a venue that swallows the population of a mid-size city.

Scale: How It Compares

VenueCapacity
Indianapolis Motor Speedway257,327 (~400,000 with infield)
Michigan Stadium (largest US stadium)107,601
SoFi Stadium (NFL)70,240 (~100,000 expanded)

IMS holds roughly 2.4 times the Big House on permanent seats alone — and close to four times once the infield fills.

What Races There

The Speedway hosts the Indianapolis 500 — the event those crowd numbers are built for — along with NASCAR’s Brickyard 400 and road-course events using the infield circuit. The track opened in 1909 and its strip of original bricks at the start-finish line is why it is called the Brickyard.

Frequently Asked Questions (FAQ)

What is Indianapolis Motor Speedway’s capacity?

257,327 permanent seats — the largest of any sports venue in the world — and around 400,000 total with infield spectators.

Is it the biggest sports venue in the world?

Yes, by permanent seating capacity.

How is it bigger than any stadium?

It is a 2.5-mile oval with grandstands along the circuit, not seating wrapped around a single field — plus a huge infield.

What events are held there?

The Indianapolis 500, NASCAR’s Brickyard 400, and road-course races using the infield circuit.

Capacity figures per Indianapolis Motor Speedway and Wikipedia; sources vary slightly between 250,000 and 257,327 permanent seats. Photo: Indianapolis Motor Speedway aerial by Rick Dikeman, CC BY-SA 3.0, via Wikimedia Commons.