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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.
You’re looking to spend most of your time running in zone 2—or 60 to 70 percent of your heart rate max, which you can calculate by subtracting your age from 220, explains Coviello.
The 20K run (20 kilometres, or approximately 12.4 miles) is a long distance foot race.It is a rarely held race that is not recognized as an Olympic event. The event held IAAF world championship status in 2006 only, when the existing IAAF World Half Marathon Championships briefly hosted the shorter distance.
Road racing events can be of virtually any distance, but the most common and well-known is the marathon, half marathon, and 10 km run. The sport of road running finds its roots in the activities of footmen : male servants who ran alongside the carriages of aristocrats around the 18th century, and who also ran errands over distances for their ...
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. [12]
is the distance over which the initial time is achieved D 2 {\displaystyle D_{2}} is the distance for which the time is to be predicted Riegel expanded on his thesis in a 1981 article for American Scientist , stating that the formula t = a x b {\displaystyle t=ax^{b}} concerns activities in the "endurance range", namely lasting between 3.5 and ...
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