Definitions for ultramarathonˌʌl trəˈmær əˌθɒn, -θən
This page provides all possible meanings and translations of the word ultramarathon
Random House Webster's College Dictionary
ul•tra•mar•a•thonˌʌl trəˈmær əˌθɒn, -θən(n.)
any footrace that is longer than a marathon.
Origin of ultramarathon:
A running race over a distance longer than 42.195 km, the length of a marathon.
An ultramarathon is any sporting event involving running and walking longer than the traditional marathon length of 42.195 kilometres. There are two types of ultramarathon events: those that cover a specified distance, and events that take place during specified time. The most common distances are 50 kilometres, 100 kilometres, 50 miles and 100 miles, although many races have other distances. The 100 kilometers is an official IAAF world record event. Other distances/times include double marathons, 24-hour races, and multiday races of 1000 miles or even longer. The format of these events and the courses vary, ranging from single or multiple loops, to point-to-point road or trail races, to cross-country rogaines. Many ultramarathons, especially trail challenges, have severe course obstacles, such as inclement weather, elevation change, or rugged terrain. Many of these races are run on dirt roads or mountain paths, though some are run on paved roads as well. Usually, there are aid stations every 20 to 35 km apart, where runners can replenish food and drink supplies or take a short break.
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"ultramarathon." Definitions.net. STANDS4 LLC, 2014. Web. 17 Sep. 2014. <http://www.definitions.net/definition/ultramarathon>.