How do sports channels give statistics (% in possession etc)?

Question

How do sports channels like ESPN give us statistics and reports at the half time and after the match, on how many % someone has the possession of the ball, how many miles run by the player, how many shots 'on-target' etc?

Do they have people sitting down there writing these down, or is it mechanized?

Answer 1

people enter numbers into the computer and the computer can do the math