In order to register to compete:
We’re going to limit the number of competitors to 10. To prevent signup flakes, people who sign up and don’t compete, while taking up a spot that an actual competitor could have used, we are charging a “flake-prevention fee”. In order to register you will have to pay $50. If you show up and compete, that fee will be refunded.
In other words, it is free to compete, but to register to compete without competing costs $50.
In order to register to spectate:
There is no fee to spectate.