We’ll be the first to say we’re not full up to speed on 3x3 basketball, a new Olympic sport, but we do know this: it’s different.
First, it’s played half court, understandably. Second, the shot clock is 12 seconds. There’s no jump ball, and we don't think you can foul out. First team to 21 wins but we think there’s a clock and if you don’t get to 21, high scorer wins. Three point shots count for two, while regular shots count for one as do free throws.
We could have gotten some of this wrong but the basic gist is correct.