What is the most boring sport to watch in your opinion? Why?

For me, it would be billiards pool. I didn't even know that this was a sport when I just heard it. The reason is because it is just hitting a ball with a stick. We can just do it for fun if we would have the tools. And also it is not a match in my opinion.

For me, it would be curling. I feel like the action is a bit slow-paced for my taste. It seems like the action is also very repetitive with no real observable skill outplay by a player. There aren't really many variants in play, just bouncing rock with other rocks.