Born to Run Ultra Marathon

MAY
12-16
2027
A multi-day trail ultra at a Los Olivos ranch with options from 10 miles to 200 miles, camping, aid stations, lap counting, and limited entries.
12-16 May 2027
100 miles 30 miles 20 miles 10 miles

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About the race

The Born to Run Ultra Marathons take place May 12–16, 2027 in Los Olivos, CA, and are organized by All We Do Is Run. Event capacity is limited to the first 300 registered participants and guests. Registration and fees vary by event; the organizer states there are no refunds, transfers, or deferrals.

Event options include the following distances and formats:

  • 4 Day / 96 Hour multiday event with 100- and 200-mile buckle options
  • 3 Day / 72 Hour multiday event with 100-mile buckle option
  • 100 Mile single event (finish within 48 hours)
  • 30 Mile (three 10-mile loops)
  • 20 Mile (two 10-mile loops)
  • 10 Mile (one 10-mile loop)
  • Guest Day Pass and ranch access passes

Common race features: onsite camping, a marked course, aid roughly every 5 miles, and souvenir shirts, custom bibs, and finisher awards. Multi-day and 100-mile events use chip lap counting; some events award top male and female finishers. Shorter loop events do not allow pacers.

Course and site notes: the course is 100% dirt on ranch roads and single-track, arranged as two one-way 10-mile loops meeting at the center with vehicle access about every 10 miles. Ribbons mark loops and turns; blue ribbon indicates wrong way. Dogs are not allowed on course. A per-person ranch fee is charged daily and is payable at runner check-in in cash. The organizer may amend or cancel the event for safety, permit, or health reasons. Visit the organization's website for the most recent information.

100 mi
Born to Run 100 Mile
30 mi
Born to Run 30 Mile
20 mi
Born to Run 20 Mile
10 mi
Born to Run 10 Mile
Born to Run Four Day
Born to Run Three Day
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