Michael
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Posted: 7 July 2010, 6:53 AM
Interesting course-splitting device in the boys. A loop with a leg across the middle, looks like you could do loop-then-across or across-then-loop and provide exactly the same orienteering. Has this got a name?
Another thing I hadn't seen before is the "mandatory crossing point" symbol on the map (boys 25-26) without anything to cross or any features at all that I can see. A spectator leg of course but I wonder what defined the point on the ground.
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onemanfanclub
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Posted: 7 July 2010, 7:42 AM
Had this in a Waitangi series race one - Waihora? I think it's what's called a ?phi-loop (or some greek letter anyway)
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jeffg
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Posted: 7 July 2010, 9:47 AM
Also used in the Great Day O in 2006, although this JWOC loop is a bit different; it returns from the second pivot to the first pivot round the outside rather than through the middle.
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Michael
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Posted: 8 July 2010, 5:40 AM
No doubt Selena is feeling a bit down but if her mis-punch didn't involve a short-cut, she can be very pleased with her time - would have been the 2nd kiwi girl! Plenty of years yet Selena.
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AlisterM
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Posted: 8 July 2010, 6:49 AM
Selena unfortunately punched the boys control 5 which was really close to her control 5.
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Martin
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Posted: 8 July 2010, 10:26 AM
Looks like a good run from Selena otherwise. Go well tonight guys, we'll be watching.
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Alistair
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Posted: 8 July 2010, 12:44 PM
Yes, it's a phi-loop, alternating runners do the controls in a different a order - in this case some take 9 immediately after 8, and others take it after doing 8-10-11-12.
To make it extra interesting you can include a map-change at control 11 in this case, then the runners are not aware what the common controls (8 & 10) are until after the map-change. This is generally accepted to be a much better splitting technique than using butterfly loops.
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Norm
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Posted: 8 July 2010, 2:15 PM
JWOC Middle - Qualification
Just in case there is anyone out there who is unsure of how this works...
There are 3 heats, all quite separate races. (That is why Scott and Jourdan can have the same start time of 11:40am local). The 3 races will have slightly different lengths, and different winning times. The objective is to be in the top 20 places in your heat. Those 60 people (ie 3 x 20) go into the prestigeous A final. The people 21st-40th in their heat go into the B final, the rest into the C final, on tomorrow.
Statistically is a bit 'easier' for the Women to make the A final (60/124) than for the Men (60/157).
The results for the 6 heats are showing up now at: http://www.jwoc2010.dk/tempres/CLASS.HTM
Remember it is probable that the 'faster/better' runners are running later for many countries.
Pretty poor effort by the Danes with live results, considering that the Ausies could do it from Dubbo 3 years ago !
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ACW
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Posted: 8 July 2010, 2:23 PM
Great run from Angela. Currently 4th - 13 sec down. Beat both the Swiss in her heat. wow
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AlistairR
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Posted: 8 July 2010, 3:09 PM
Matts had a good run as well 9th at the moment...
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mick finn
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Posted: 8 July 2010, 3:33 PM
Results through - Angela, Scott Mc and Matt Ogden all qualified for Middle Final! All 12 Swedes and 12 Norwegians qual'd, unsurprisingly.
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paultheOctopus
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Posted: 8 July 2010, 3:43 PM
three through, awesome, just as i predicted
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Michael
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Posted: 8 July 2010, 5:28 PM
NZ 60% of all non-European qualifiers? The mouse that roared.
When they bring in that new system where you divide by the distance travelled to the event, we'll be home and hosed.
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onemanfanclub
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Posted: 9 July 2010, 12:57 AM
Excellent Angela, Scott & Matt. Note Laura just a minute off qualifying too. Mr Octopus, what margin will Dincan win the C final by?
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Bryan
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Posted: 9 July 2010, 3:00 AM
Alistair, how do you make sure at the map change at 11 that runners pick up the right map - some runners doing 11-12-13 and others doing 11-12-9-13?
I would have thought it better to make the legs a bit different in length - I found in the Winter Classic where I had too loops the same distance / similar splits that it didn't really test any followers enough as the time taken was only about 2 minutes
and its easy to make that back up after the loops are done. I've seen examples of courses with 3 butterfly loops of different lengths (short, middle and long) which I thought would definitely split up to 6 runners who were running together. In this year's Winter Classic I'm thinking of using both methods - pivot with 3 butterfly loops of different lengths, followed by a phi-loop (maybe with a map-change).
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