BOO Seattle 2026: The Blurs Fill In

BOO Seattle came in waves. On May 27 the flyer had two names on it, GRiZ and Subtronics, headliners for Insomniac’s Halloween run at WAMU Theater on October 30 and 31, 18+. On July 6 the Phase 2 flyer filled in the wall: 38 names, with three slots smudged out. Phase 3 landed at the end of July and the smudges are gone.

The flyer prints alphabetically, so a blur has an address. Those addresses have names in them now. Cloonee sits where the gap between Clara Cuvé and Dansyn was. OMNOM sits between Morgan Seatree and PEDROZ. The third gap, between Elderbrook and Gramatik, came back holding two names instead of one, FRAZE and Getter, so which of them was under the blur is not something the alphabet can settle.

Phase 3 announced seven: Cloonee, Getter, OMNOM, Beebo, Usaybflow, FRAZE and Taylor Hadden.

Two more names are on the official lineup page that no phase announcement covered at all: AMP and Leah York. A third, Jem.G, sat in Insomniac’s press copy back in July without ever reaching the flyer or the lineup page, and now holds a spot on both. Counted today, the page runs 48 deep, ten past the Phase 2 flyer.

What isn’t announced

No set times. No day splits either, so nothing published says who plays the 30th and who plays the 31st. Insomniac’s own copy for this year describes three stages.

One thing to know if you go looking yourself. The set times page on the official site is live and fully populated, and what’s on it is last year’s schedule: Zedd, RL Grime and NERO across the Grand Hall, the Bassment and the Corridor, dated October 31 and November 1, which were the 2025 dates. None of it applies to this year’s bill.

We publish the real grid the hour it lands, as a full set times page with lock screen wallpapers to match.