Overclock
The TBC & WotLK Classic guild I was Guild Master and Raid Leader of.
Ranks from WarcraftLogs guild rankings (Classic): progression is the race to first kill, speedrun the fastest full clear, speed kill the aggregate boss-kill speed. Same guild across realm and faction moves: Netherwind, then Benediction, then Faerlina.
I've been playing since 2005 and raided competitively in nearly every expansion since, leading raids since I was a teenager. Before Overclock I was an officer in Rise, an NA-first Classic speedrunning guild, and in Legion I raid-led GN (formerly HC) to World 90th on Mythic Kil'jaeden. Around that time I also wrote GottaGoFast, a Mythic+ keystone timer that's at roughly 2.6M downloads.
Overclock ran from before TBC Classic through the end of Wrath: about 35 raiders, trying to be NA's top progression guild and one of the world's top speedrun guilds. It was a huge time commitment. Constant roster work, recruitment, strategy, loot, hundreds of hours on the PTR. I also wrote most of the guild's tooling along the way, including the WeakAura packs and the Overclock Tools addon. Doing the job well was all-consuming, and most of the calls were on a timeline, under pressure. I'm proud I was able to go past trying to be the best to trying to be the best in the world. That's a whole different level.