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Pikes Peak Marathon
The Pikes Peak Ascent and Marathon is a racing event that begins at the base of Pikes Peak, in Manitou Springs, Colorado, and climbs over 7,815 feet (2382 m) to the top of the 14,115 foot (4302 m) peak. Since 1966, the event takes place each year in late summer, with the Ascent taking place on Saturday (slightly longer than a half-marathon, at 13.3 miles), and the round-trip marathon on Sunday.
==Course==
Because of the nature of the run (dirt trails, rock, and other natural obstacles) and the high altitude, the race is much more difficult than standard marathons. Winning times for the marathon are typically just under four hours (compared to elite "flatland" marathon times of just over two hours). Although the average grade of the slope is 11%, some sections are much steeper because the central portion of the race is relatively flat. The initial three miles (5 km) are very steep. The central start as rolling terrain, but become progressively steeper toward the end. The top are above timberline and require some rock scrambling to reach the summit. Oxygen levels drop progressively as altitude rises, further compounding the uphill ordeal.
Winning race times differ significantly from year to year, often depending on weather and trail conditions. Some races have been associated with hot, dry conditions, and others have been associated with snow and cold at the top of the peak.
The race attracts hundreds of runners for both the ascent and for the round-trip. The USDA Forest Service limits the number of runners to 1,800 for the ascent and 800 for the marathon, and the race registration typically fills in one or two days.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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