This is a video of Harlem Globetrotter Anthony 'Buckets' Blakes making a 583-foot, 8-inch basketball shot from the top of the Tower Of The Americas in San Antonio, Texas. Check out the Magnus effect on that ball! I'm not sure how much testing they had to do and how many shots he actually had to shoot before he made one, but my guess is it wasn't the first one like the video would lead you to believe. Also, no word how many points a 583-foot shot should be worth during an NBA game, but I suspect at least five, possibly six.
Keep going for the video while I repeatedly throw paper balls at the wastebasket and miss.
Thanks to Alan AA, who would have gone with a hook shot for bonus flair.