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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 25K run (25 kilometers, approximately 15.52 miles) is a long distance running footrace that is between the distance of a half marathon and a marathon.It was formerly an official world record distance in road running by World Athletics, [1] but has since been downgraded to world best status.
42.195 km Length of a marathon: 10 5: 100 km: 100 km The distance the IAU considers to be the limit to space, called the Karman line: 163 km Length of the Suez Canal, connecting the Mediterranean Sea to the Red Sea: 491 km Length of the Pyrenees, the mountain range separating Spain and France: 600km Thermosphere height 974.6 km
Length; system unit code (other) symbol or abbrev. notes conversion factor/m combinations SI: gigametre: Gm Gm US spelling: gigameter: 1.0 Gm (620,000 mi) megametre: Mm Mm US spelling: megameter: 1.0 Mm (620 mi) kilometre: km km US spelling: kilometer: 1.0 km (0.62 mi) km mi; hectometre: hm hm US spelling: hectometer: 1.0 hm (330 ft) decametre ...
Metric prefixes; Text Symbol Factor or; yotta Y 10 24: 1 000 000 000 000 000 000 000 000: zetta Z 10 21: 1 000 000 000 000 000 000 000: exa E 10 18: 1 000 000 000 000 000 000: peta P 10 15: 1 000 000 000 000 000: tera T
Converts measurements to other units. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Value 1 The value to convert. Number required From unit 2 The unit for the provided value. Suggested values km2 m2 cm2 mm2 ha sqmi acre sqyd sqft sqin km m cm mm mi yd ft in kg g mg lb oz m/s km/h mph K C F m3 cm3 mm3 L mL cuft ...
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On 30 March 1991, Arturo Barrios ran a world record distance of 21.101 km in one hour, becoming the first man to run the half marathon distance in under one hour. [11] On 3 April 1993, Moses Tanui became the first man to run a half marathon race in under one hour, with a time of 59:47.