Occassional thoughts about orienteering
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| okansas.blogspot.com Occassional thoughts about orienteering |
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Sunday, April 26, 2009 More time in the ring Today I took at look at my time in the ring from the West Point middle distance course. I didn't run the same course as Hammer, but the courses are similar and the terrain is the same.Here are my seconds in the ring for each control: 1. 49 2. 42 3. 39 4. 33 5. 46 6. 34 7. 27 8. 55 9. 26 10. 38 11. 34 12. 18 13. 12 What stands out? I was running a good bit slower than Hammer in the rings (and for the rest of the course, too). I seem to have slowed a good bit toward the end of the course. Look at my times in the ring for controls 10 and 11. I spent a total of 1:12 in those two rings. Those two controls were easy to get in and out of and didn't pose any particular technical difficulty. I was just tired. My time in the first ring stands out as slow. I compared my ring times in the rockier terrain to Hammer's ring times in the rockier terrain (keeping in mind we're not running the same course). Except for my first control, I seem to have been pretty steady (if slow). Here are how many seconds I was slower in the first six rings: 22, 8, 2, 7, 9, and 4. The first control looks out of place. I suspect that my weak time in the ring at the first control reflects the terrain - some rocks, some downhill, and some uphill. My time in the 8th ring was 55 seconds. I was taking a careful look at the next leg. I'd picked a route, but I took a second careful look. This struck me as the sort of leg where a hasty route choice might cost too much time, so it was worth spending some extra seconds to double check. I think my route to 9 was the best option. The graph below shows my ring times from 4 races this spring. The green line is the West Point middle.  Back to okansas.blogspot.com. posted by Michael | 10:22 AM 
Comments:
Based on your time of 50:46 for a 4.2km course, one can estimate the time you should be in the ring as (50/4200)*50.7666 = 36 seconds per ring, with a ring diameter of 50 meters. That's a bit of an underestimate, given that you didn't follow the straight line perfectly on the course. Averaging over your "time in the ring" values gives 34.8 seconds/ring, which suggests that you don't slow down much or lose much time in the control circle. Look for other places to focus your training.
# posted by
 : 8:39 PM
An equivalent analysis for Hammer gives 24.4 seconds/ring based on his overall time. The average of his time in the ring values is 26.5. Again, remarkably similar.
# posted by
: 8:45 PM
I'm not really looking for where to focus my training, I'm seeing what (if anything) I can learn by looking at some new data. To get better - to focus my training - I would do three things: drop some weight; run a lot more (last year was the least I've trained since the mid 1990s); and work on running up/down/through the terrain.
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Michael # posted by
: 6:38 PM |
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