A backyard ultra is a last-person-standing race: every competitor starts a 4.167-mile loop, called a yard, at the top of each hour and must finish it inside that hour to stay in, until one runner completes a yard nobody else completes. This is an official
… MoreA backyard ultra is a last-person-standing race: every competitor starts a 4.167-mile loop, called a yard, at the top of each hour and must finish it inside that hour to stay in, until one runner completes a yard nobody else completes. This is an official affiliate race organised independently by Jose Sosa Jr. of Los Gallos Ultras rather than by the championship organisation.
It starts at 9:00 a.m. on Saturday 14 November 2026 in Bonita, California, in the South Bay east of Chula Vista, on smooth hard-packed trail with one gentle hill and separate day and night loops. Note that the official affiliate list carries a stale date and location for this race — 7 November in Chula Vista — while the registrar gives 14 November on Sweetwater Road in Bonita, which is adjacent to the Rohr Park venue the race text still refers to. Worth confirming with the race director.
Entry is $125, or $136.62 including fees, through UltraSignup; registration closes on 1 November. The field is capped at 80. No age minimum, crew or pacer policy is published, though the format’s global rules apply. The organizer runs a spring edition of the same race in February.
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