There is no official statistical definition for a fast break point. There's no manual you can consult, no clip tape you can watch.
For this year's Carolina team, here's the easiest way to tell if it's a fast break point: does Coby White have the ball? If so, you can probably put it in that category.
The Carolina freshman is a one-man fast break. Twice in the first half against Harvard, he pushed the ball for a Tar Heel basket after a Crimson made hoop; head coach Tommy Amaker immediately burned a timeout after the second one.