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An ultramarathon is any organized footrace extending beyond the standard marathon running distance of 42 kilometers, 195 meters (26 miles, 385 yards). Ultra races typically begin at 50 kilometers and can extend to enormous distances.
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www.ultrunr.com/what_is.html
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For those who want the ultimate test of endurance, here's how to train for an run in an ultra marathon. ... Two of the most common distances for ultra marathons are 50 miles and 100 miles, however, these events can consist of any event defined by the race director. Training for these events can be a grueling process.
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www.therunnersguide.com/ultramarathons/
www.therunnersguide.com/ultramarathons/
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An ultramarathon is defined as any running event longer than the traditional marathon race distance of 42.2K, or 26.2 miles – which, interestingly enough is equivalent Some popular timed ultramarathon races are: Across the Years – a 72/48/...
http://run100miles.com/ultra-resources/about-ultramarat...
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Walking allows runners to recharge and to cover longer distances than would otherwise be possible. Runners can rest running muscles while still making forward progress. ... Other popular ultramarathon distances are 50 miles, 100 kilometers (62 miles), and 100 miles. There are also 40 mile races and races over 100 miles.
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running-marathons-races.suite101.com/article.cfm/how_to...
running-marathons-races.suite101.com/article.cfm/how_to_run_an_ultramarathon_race
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Runners who seek challenges beyond the marathon run ultramarathons. An ultramarathon is any distance longer than 26.2 miles. Popular ultramarathon distances are: 50 kilometers, 50 miles, 100 kilometers, and 100 miles.
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running-marathons-races.suite101.com/article.cfm/beginn...
running-marathons-races.suite101.com/article.cfm/beginners_guide_to_road_racing
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The International Association of Ultra Runners (IAU) organises the World Championships for various ultramarathon distances, including 50K, 100K, ...
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wapedia.mobi/en/Ultramarathon
wapedia.mobi/en/Ultramarathon
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Ultramarathons are walking/running events of any distance above the marathon 42K. While these events are usually set up for "runners," walkers are welcomed ...
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walking.about.com/od/ultratraining/a/ultras.htm
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An ultramarathon is any running event longer than the traditional marathon length of 42.195 kilometers (26.21875 miles, 46,145 yards).There are generally two types of ultramarathon runs, events that cover a specified distance, and events that take place during a specified time frame (with the winner covering the most ...
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tripatlas.com/Ultramarathon
tripatlas.com/Ultramarathon
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07. And yes, it is my experience that if a person cannot run a 6 hour marathon on a standard course, they need to get there before proceeding to the ultramarathon distances.
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www.coachweber.com/ultra_training_pace.htm
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