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Grid-O Endur-O, or “22 in 2 on 2-22”

February 22, 2020 @ 12:00 pm - 2:00 pm

$5.00 – $15.00
Grid-O Endur-O grid orienteering challenge


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Join us at The Park at Flat Rock on February 22, 2020 at 12 noon for our first ever running of a new orienteering concept race:  Grid-O Endur-O.

Due to the irresistibly appealing numerical alliteration, the subtitle of this event is “22 in 2 on 2/22.” (hold your applause)


  • 11:00 am – 11:30 am – Arrival and registration
  • 11:45 am – Pre-race briefing and instructions
  • 12:00 pm – Starts begin and will be staggered by 1 minute.
  • 12:30 pm – Last available start time (for walk-ups and folks running late)
  • 2:00 pm – Course closes 2 hours after you begin (i.e. if you start in the 7th minute, your cutoff is 2:07 pm)

    Grid-O Endur-O grid in the field
    The grid of control flags are spaced out in a field. Spacing is variable and will likely be wider apart than in the photo.


This event is geared towards ALL ABILITY LEVELS, ALL AGES, from beginner to expert.

Race Format

  • On a “level surface,” there are 12 control points, spaced 10 meters apart, arranged in a 3 x 4 grid.
  • There is a Start and Finish control 10 meters outside the grid on the same side.
  • There are 22 courses that increase in difficulty and length.
  • Courses are linear and control flags must be visited in sequence. Each control flag has a control box on it, which you use your finger stick to “punch.”
  • The easiest course has 12 points and is 130 m long. The hardest course has 22 points and is 460 m long.
  • Courses gradually take longer to complete, and average between 1 and 5 minutes apiece.
  • The combined total distance of all 22 courses is 4.6 km.
  • You have 2 hours to complete as many of the courses in order as you can.
  • A “mispunch” (MP) occurs when you miss a punch or go out of order. If you mispunch, you must do the course over again until you get it right. Only then, can you move on.
  • 2 hours is probably enough time to finish all 22 courses.
  • If multiple runners finish all 22 courses, then results are determined by lowest elapsed time.
  • Starts will be staggered by 1 minute starting at 12:00 pm, or whenever you arrive if you’re a little late.

    Control flag - Grid-O Endur-O
    Control flags with SPORTident timing box on top.

The Map and Venue

  • You will receive a Zip-Lock bag containing your 22 courses, each occupying a quarter sheet of paper. Scale and magnetic north are irrelevant, and there is no compass necessary for this event. The map only needs to be oriented to the Start/Finish area which borders one side of the grid.
  • The 22nd and final course is called “GRIDiculous,” and you will understand why… if you get that far.
  • The Park at Flat Rock is a rolling, flat grassy area that used to be a golf course. It features multiple ponds, lush gardens, is beautifully landscaped and has been a GREAT venue for classic orienteering. During this event, we won’t see any of the park except for the grid area, whose location is TBD.
  • We encourage you to explore this amazing park before and after the event, especially their awesome playground (bring the kids!)

    Grid-O Enduro results download station
    Downloading results between courses.


  • Adults – $15 per person (minus $5 if you own your own SPORTident finger stick)
  • Children (14 and under) – $10 per person (minus $5 if you own your own SPORTident finger stick)
  • Participation is limited by the number of finger sticks we have (40ish)


February 22, 2020
12:00 pm - 2:00 pm
$5.00 – $15.00


WNC Orienteering Club


The Park at Flat Rock
55 Highland Golf Dr
Flat Rock, 28731 United States
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