https://www.pcgamer.com/for-the-first-time-ever-wows-top-guild-will-stream-its-race-to-beat-the-brutal-new-raid/

On September 11, the mythic-difficulty version of Uldir, the first raid in Battle for Azeroth, opens up. This brutally hard version of the raid will pit raid teams against a gauntlet of eight bosses, each possessing a series of abilities that will devastate all but the most skilled and coordinated teams. And for the first time ever, WoW's top guild, Method, will stream the whole thing on Twitch—bringing an end to the mystery of World of Warcraft's mythic world-first raid races.

Guilds treat their strategies as top secret and as a result of this, no guild with a shot at claiming a world first has ever live-streamed this competition.