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Comment by dsfuoi | Hacker News Reader

How is this recorded; and so accurately?

Manually. Companies like Stats(that also now running the optical tracking in the nba) has rooms full of people watching videos of games and tagging events.

In the US? That seems really tedious.

Tedious probably. Profitable definitely.

Yes, they have those people in their Chicago office.

(I believe they also have people in India doing this nowdays)

I know a lot of guys that work at stats. Some of it is manual but over the last couple years they have actually build some pretty cool stuff to track all this. The company has done three rounds of massive layoffs over the last year though so who knows if advancements will continue.

Now they have something called SportVU. It is a set of cameras that track the players around. It really cool tech.

http://www.stats.com/sportvu/sportvu-basketball-media/

Seems the NBA have upped their data collection game recently: https://en.wikipedia.org/wiki/Player_tracking_(National_Bask...

Still that is only for recent games

> It began use in the NBA at the start of the 2013–14 season, and it is now in use in all 30 arenas, following trials during the previous season in 15 arenas.[

Which I guess means before that they had some guy who just recorded shots on a board. Would be interesting to see how it was collected prior to this technology

It was collected by interns and other cheap help, and it still is by everybody except STATS (who owns SportVU).

And who wants to pay for this data to make this even worth doing? Who can use such statistics for anything than this or similar article?

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