Friday the 13th only — convenes ~2-3 times per year whenever the calendar permits.
Phoenix's Friday-the-13th-only hash. Convenes when the calendar permits — typically two to three times a year. "The most evil hash in all of Phoenix" with horror-movie-themed runs.
From Dusk Till Down-Down #26 presents Leprechaun 6.9-Spermin a 1000 Beavers
From Dusk Till Down-Down #26 presents "My Bloody Hashentine"
From Dusk Till Down Down presents #25 -28 Hashes Later