Filming and drone regulations
Different areas, cities and countries will have different regulations regarding the flying of drones. Your host or tournament organiser should be able to supply this information to you. Alternatively, a lot of countries have government websites which outline where and when you can fly drones in their country.
Regulations regarding filming your own matches for analytical purposes should be in the Terms of Participation. You should also be able to access footage from other matches within a tournament from a central repository. Details will be supplied by tournament organisers.