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If I understand you correctly you are asking if you do an adjustment on a course, and then do one measurement of the entire adjusted course, does it get a new 10-year life?

The exception that was made for expired courses is very simple and straight-forward. If you measure the original, unaltered course, and your one measurement is within 0.08% of the certified distance, it can be re-certified with a new 10-year life. If your one measurement is not within 0.08%, then you have to do a second measurement.

IMO what you are asking is a VERY broad generalization of that very specific exception, and it should require an agreed upon rule change.

I didn't mean to suggest you were trying to game the system at all. What you asked is a legitimate question, and I can certainly see the logic behind it. It just seems like a stretch to me.

What I could see as a possible extension that is less of a stretch would be to allow a single measurement of an existing course to give a new year 10-year life even if it hasn't expired yet. This would have a similar simplicity of the current expired course exception. After doing that, an adjustment could be made, and then there would be an adjusted course with a new 10-year life. You may say that this is essentially the same thing, but I see one big difference. That one measurement that is being made is of a very well defined and documented course. I still think this would need to be an agreed upon rule change, but it seems more likely.

I sympathize, Oscar. I encountered a similar thing attempting to replace a small segment of a marathon course recently. It turned out OK, but it was a challenge to locate & verify old timing points where the "fixed" objects were no longer present. Fortunately, I had a turn around for which there was plenty of room to adjust. Otherwise, it would have been a real pain to get accurate. I concluded that it may have been nearly as easy to measure the entire thing all over again. I am becoming averse to the "erector set" methodology for marathons. I might even recommend some kind of rule about this - if more than - say, 25% of a marathon course - or perhaps as little as 6 miles - is to be changed, the course must be measured all over again.

Lyman you could write up a new rule proposal and it would be considered. But I think it's going to be difficult to come up with a general rule about adjustments that makes sense. Using the number of adjustments doesn't work because some adjustments are simply moving the start 30 feet and then moving the finish 30 feet to make up for it. Using the total distance doesn't really work because some adjustments might be using a straight parallel road that goes on for miles. What really matters, in the sense that it can result in errors, is the complexity of the adjustments, and that's a hard thing to objectively define.

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