Jump heights

Troggy

Troggy

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Please can someone confirm to me how jumps are meant to be measured? I am sure for Affiliated competitions; the height is measured to the bottom of the pole, is this correct? All local shows round here measure to the top (unaffiliated). Just wondered really as would be nice to practise at the correct height!

Also on a different note, does anyone know the heights for the different “cups” on poly blocks? I know the top is 2ft8 which makes 3ft with pole on but does anyone know the other heights?

Thanks!
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All affiliated competitions i have competed in they measure to the top of the pole.....although on occasions i do wonder lol!

Most unaffiliated competitions don't seem to bother to measure at all
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Upon reflection, I remember a course builder telling me that in BSJA they have a little leyway with the height to allow for the arena surface and where the holes fall on the wings.

This could be why they are sometimes higher that the actual height. I think the bigger venues (thinking Bicton here !) use that leyway more than others!!
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I always measure the fences when I run SJ. Mind you ,people have a strange idea of heights some times.
I measure to the top of the pole.
 
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I might be wrong, but Im pretty sure Ive heard its measured to the bottom of the pole / cup.

Dont agree that it should be, coz that means your actually jumping bigger than the hieght the class is advertised at!
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That would make most classes about 4" higher than they really are.....and when you're talking about a local 2'9" class, that is a big percentange difference. I know my heights pretty accurately when i walk a course, and i know that at affiliated comps the height is the top of the pole. In fact, at those venues with Jump4Joy wings it is pretty east to tell....as the heights are stamped on the wings anyway
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I always thought it was measured to the top of the pole, but I also thought that the surface was taken into account, ie depth of sand??

Unaffiliated always seems to be on the small side, however I was a little shocked at how big the jumps were this weekend!
 
OK, a lead on question (sorry Trogs) - but those J4J and Poly jumps with heights on the wings, is 1m mark AT 1m, or by putting the cup there and placing a pole in it does the jump become 1m
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OK, a lead on question (sorry Trogs) - but those J4J and Poly jumps with heights on the wings, is 1m mark AT 1m, or by putting the cup there and placing a pole in it does the jump become 1m
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Thats what I ment! If the cup is on the 1m mark then you put the pole on, its bigger than 1m then!!!
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Thanks Kat, have been wondering that for ages, but as I have normal wooden wings I couldn't measure them (and I do not carry a tape measure around with me at events LOL)
 
Thanks Kat, I have actually been jumping bigger than I thought all these years! I used to bottle out on J at about 1.15m when actually it was probably nearer 1.20m LOL!
 
I've helped two different BSJA-approved course builders on a couple of occasions. One builder built each class so if was meant to be 1.10m then the top of the pole was at the 1.10m mark. The other course builder built his courses so at least half the jumps were 5cm over, ie the 1.10m course varied from 1.10m to 1.15m. He did this consistently throughout the day and with all the classes. It definitely varies with the coursebuilder! Having seen these two examples first hand I would only enter competitions with courses built by the first builder as then I know they're not bigger than I expect.
 
I spoke with a course builder at one show & he said the jumps are measured to the top of the poles & he is allowed up to 5cm difference. Also just because the class may me 1.10m does not mean that all fences need to be at that height, some may be lower.
 
Under the poles. Well, I looked the other day at a 1.10m class - they had some of those plastic wings with the heights written on them. The base of the pole was dead on 1.10m. Ive always been told its bottom of the pole!
 
I think the advent of single and 2 phase has created the impression that courses are built oversize. Fence heights in the jump off are allowed to be 10cm higher than first round but with single or 2 phase the second half of the course is the jump off hence the fences will be significantly higher than the class height.
 
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I think the advent of single and 2 phase has created the impression that courses are built oversize. Fence heights in the jump off are allowed to be 10cm higher than first round but with single or 2 phase the second half of the course is the jump off hence the fences will be significantly higher than the class height.

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I agree completely....a 2-phase class often deceives the eye
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