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An Ironman Triathlon is one of a series of long-distance triathlon races organized by the World Triathlon Corporation (WTC), consisting of a 2.4-mile (3.9 km) swim, a 112-mile (180.2 km) bicycle ride and a marathon 26.22-mile (42.2 km) run completed in that order, a total of 140.6 miles (226.3 km). It is widely considered one of the most ...
The International Olympic Committee agreed in 1907 that the distance for the 1908 London Olympic marathon would be about 25 miles or 40 kilometers. The organizers decided on a course of 26 miles from the start at Windsor Castle to the royal entrance to the White City Stadium , followed by a lap (586 yards 2 feet; 536 m) of the track, finishing ...
The most common distances are 50 kilometres (31.07 mi), 50 miles (80.47 km), 100 kilometres (62.14 mi), 100 miles (160.93 km), and continue up to the longest certified race distance of 3100 miles. [1] Timed events range from 6, 12, and 24 hours to 3, 6, and 10 days (known as Multiday races). Timed events are generally run on a track or a short ...
Pheidippides is said to have run 40 kilometres (25 mi) from Marathon to Athens to deliver news of the victory of the Battle of Marathon, and, according to Herodotus, to have run from Athens to Sparta. This latter feat also inspired two ultramarathon races, the 246-kilometre (153 mi) Spartathlon and 490-kilometre (300 mi) Authentic Pheidippides Run
A half marathon is a road running event of 21.0975 kilometres (13 miles 192.5 yards)—half the distance of a marathon. [1] It is common for a half marathon event to be held concurrently with a marathon or a 5K race, using almost the same course with a late start, an early finish, or shortcuts. [2]
The canyon was created by the Colorado River cutting a channel over millions of years, and is about 277 miles (446 km) long, ranges in width from 4 to 18 miles (6 to 29 km) and attains a depth of more than 1 mile (1.6 km).
The sewer systems in Sanaa is over 500 kilometres long. [7] There are two activated sludge water treatment plants in the city: the main one, in Bani al-Harith District, was commissioned in 2000 and has a daily capacity of 50,500m 3 ; the second, in al-Hashishiyah , is much smaller with a capacity of 500m 3 and is dedicated to collecting ...
This is a difference of less than one millimetre (0.039 in) over the total distance (approximately 1.86 kilometres or 1.16 miles). Earth is commonly modeled as a sphere flattened 0.336% along its axis.