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Here's an article that illustrates the problem of moving landmarks. It was published in British Columbia's, Whistler Question on June 21, 2012. You can read the complete article at this link:

http://www.whistlerquestion.co...ell-short-organizers

I also pasted the text of the article below. Enjoy. -- Justin

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Whistler Half Marathon route fell short
Measurements paid for by race officials given incorrectly

Events Eric MacKenzie
eric@whistlerquestion.com

Whistler Half Marathon officials have issued an apology to participants in this year’s race after learning that the course used for the second annual event on June 2 was more than a kilometre shorter than the traditional half-marathon distance.

In a letter sent to participants and circulated to media on Tuesday (June 19), race director Dave Clark explained that the device used by a third-party official sanctioned by B.C. Athletics was not properly calibrated when course measurements were taken, resulting in a route that was approximately 19.9 km instead of the planned 21.1 km.

"I personally apologize for this error and I appreciate the disappointment that some athletes may feel," Clark wrote in the letter to participants.

In a further email to The Question, Clark said race officials themselves were disappointed to learn the news but "felt it was very important to be open and honest about the results."

On race day, Clark heard from multiple athletes who said they thought the course was too short, which Clark said he found surprising due to the fact that the event "had invested in professional course certification sanctioned by B.C. Athletics."

Clark approached B.C. Athletics to investigate, and the sport authority determined that an incorrect measurement was taken.

As explained in the letter to participants, course measurements are taken by a device known as a Jones counter, which is mounted to a bicycle wheel and calibrated upon a number of factors. The Jones counter used to measure the Whistler route was in error due to an unnoticed change to a calibration course in Squamish used to set the device.

"Investigations have shown that a fire hydrant used as a reference point for calibration had been moved by approximately 17.5 m," B.C. Athletics officials were quoted as saying in the letter. The discrepancy then resulted in the 1.2-km shortfall when plotting out the Whistler course.

Clark said he’s hopeful that the shorter route doesn’t leave a bad taste in the mouths of people who thought they had conquered the half-marathon distance while running in what’s become a popular community-wide event.

"I am confident that the Whistler Half Marathon will continue to be a popular event with runners due to its amazing scenery, spectator support and our dedicated partners,"Clark said in the letter. "Our race management team remains focused on providing an amazing race weekend experience for everyone."

Clark said the 2011 route was not measured by a Jones counter, as most inaugural running events don’t do so due to the cost involved, but it’s possible that last year’s course also fell short of 21.1 km, though not by as much as this year’s. It’s likely that the course record set by winner David Palermo of Vancouver this year will now be noted as an incorrect distance, but Clark said race officials will have to work with B.C. Athletics to determine the appropriate course of action.

When asked if there will be any kind of compensation from B.C. Athletics or the third-party official for providing a false measurement that race officials paid to have completed, Clark said he wasn’t sure at the current time.

"The most important thing for us is to get this error rectified for future years," he said.

Next year’s race is scheduled for June 1, with registration opening on New Year’s Day.

© Copyright 2012, Whistler Question
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I once made an error of the same sort. I have been measuring a local race for many years. On my second measurement of the marathon course my second measurement differed from my first by about 50 meters. The discrepancy jumped out at me. I had used a fire hydrant as a reference point on the first measurement, and after considerable digging I discovered that I had used the wrong hydrant, 50 meters away, as the reference point on the second measurement. I was able to correct the error.

If I'd made the same error twice, I'd have had a short course. True, in 50 meters nobody would have noticed but the error would have been there. I was happy that I found it in time.

It's a shame that the calibration constant was not seen as being off-normal. This should have raised a flag, but it evidently didn't.

I feel bad for everybody concerned.

Sooner or later, if you measure enough, you are bound to err. It's part of being human.
Pete made the comment I was going to make - the calibration constant, or the clicks-per-mile(km) should have been a red flag! I know how many clicks I normally have in both my 1000-foot calibration, and for an entire mile. If they vary by more than a few clicks, I examine what I am doing.

I just discovered my Jones is broken when I did a calibration a few days ago. Normally have 3500 clicks, or so, in my calibration. but I had 4717, 4637, 4718, and 4677 clicks. Very easy to see that I had an issue.

Measurers need to pay attention to the clicks in the calibrations, as that is our first opportunity to recognize an issue (other than a flat tire when we begin a calibration!).
As a measurer in British Columbia I find this very disappointing. There are a number of well qualified measures in the Vancouver area who would not have made this mistake.

The calibration course they referred to is probably one I set in 2004 which was referenced to fire hydrants at both ends, but as Ron pointed out those references are there only help you locate the pins. Also, an experienced measurer would have noticed right away that the calibration constant was not correct. Like most measures I inflate my tires before each measurement (usually the night before) and my constant is fairly constant and in fact I use this as a check to ensure I haven't screwed up in some way.

I did a quick check of the certified course list and I cannot find a certification for the Whistler Half Marathon or any other race in Whistler. If race directors don't use experienced measures and the measurer doesn't get the measurement certified it is not surprising that mistakes like this happen. Not surprising, but it is disappointing that this still happens after all the work that has gone on over the last 20 years to ensure that race courses are accurate.
I am dealing right now with a half marathon that had the opposite problem-- turned out to be about 0.35 mile too long. I've remeasured the course and am working on the map and paperwork. It turns out that the calibration course was about 43 feet longer than the measurer thought it was-- and the "overdistance" percentage in the cal course is a close match to the "overdistance" percentage in the course.
That's one good thing perhaps--it shows that the measurer was using decent technique, just based on the wrong numbers.
This is one I feel awful about because I signed off on the course and the cal course. Lessons I'm taking from this:
  • Measurer told me that her mile points were coming out consistently longer than the former points over the unchanged parts of the course. At that point I should have given her more options for double-checking! (try a different cal course or remeasure the one you're using, etc)
  • Always insist that measurers conduct some kind of double-check of their cal course distance-- the bike check is a good one. And as others have said, with experience we should know what sort of numbers to look for when calibrating, and anything outside of that should make us sit up and take notice.
  • I agree strongly with those who are reminding us of how crucial it is to use a number of redundant references (and a nail where possible) to identify calibration endpoints. More redundancy can help us avoid those mistakes.
  • The rules as now written say that a calibration course expires after 10 years like a race course does.

    Of course, if you can find both ends of the course- especially if they're marked with nails, cut crosses or the like- something that the original measurement crew had to put there- that's pretty convincing evidence that the course hasn't changed.

    I personally wouldn't go out of my way to ding a measurer who calibrated on such a course- especially since we don't require measurers to calibrate on certified courses.
    The process for measuring a calibration course goes to great lengths, insisting on a steel tape and compensating for temperature changes to determine the overall length accurately to a fraction of an inch. I'm don't believe that re-establishing an end-point when the nail cannot be found is a good practice, whether by triangulation or other means. It doesn't take that long to layout a cal course. Just my opinion.

    I also think that all cal courses should be certified. If I go to the trouble of measuring a cal course, it doesn't take much more effort to draw a map and submit an application. It makes the cal course available for other measurers and would be useful when validating a course.
    Pete had us covered on a calibration course he did for us in Buffalo when he came here to validate in 2000. He wrote right on the map in big bold letters:

    IF NAILS ARE MISSING, COURSE IS VOID!

    (NY00037PR) and yes, Jim Gilmer expired that course and alerted his measurers that someone needed to step up and re-measure it this year.

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