For regular pool I don't think there is a main tournament like that. The only thing I can think of is the bank pool ring game at Derby City but that is a side event. Our Artistic Pool playoff format is similar to what you are talking about with one of our side events being exactly like that.
I looked up artistic pool, its not exactly what I had in mind.
I am talking about the shots on billiard match highlight reels.
The three ball combo, the two rail kick, the masse, the shots top pros make in high profile matches for an 8ball, 9ball or 10ball match.
As a spectator I feel like, they made it that one time, but was it luck or could they make that exact same shot with a fairly high percentage most of the time.
I like watching those shots in highlight videos. I think it is exciting because of the low percentage nature of the shot. Artistic pool is exciting but it doesn't translate back to competition billiards for the major tournaments.