Official Backyard Ultra Rules

1) Course

  • Loop or out and back

  • Must be 4 miles 880 feet in length, metric equivalent 6.7056 kilometers

2) Starting Corral

  • Measured to fit entire starting field

  • Corral stays the same size thru out the event

  • Participants must be in the starting corral at the whistle

3) Starts

  • Each race starts precisely 1 hour after the last

  • Warning must be given 3, 2, and 1 minutes prior to start

  • All competitors must start at the bell (no late starts)


4) Course Rules

  • Except for restrooms, competitor may not leave the course until each race is completed

  • No non-competitors on the course (including eliminated runners)

  • No personal aid during a race (common aid stations are allowed)

  • Each race must be completed within an hour to be counted… including the final race

  • No artificial aids (including trekking poles)

  • Slower runners must allow passes


5) Timing

  • Timing of the races is optional


6) Winner/Results

  • The winner is the last person to complete a race

  • All others are technically DNF

  • Results of each runner in terms of distance covered are to be given

  • If no runner can complete one more race than anyone else, there is no winner


7) Cap

  • Race must be open ended