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The marathon is a long-distance foot race with a distance of 42.195 kilometres (c. 26 mi 385 yd), [1] usually run as a road race, but the distance can be covered on trail routes. The marathon can be completed by running or with a run/walk strategy.
For a performance to be ratified as a world record by World Athletics, the marathon course on which the performance occurred must be 42.195 km (26.219 mi) long, [34] measured in a defined manner using the calibrated bicycle method [35] (the distance in kilometers being the official distance; the distance in miles is an approximation) and meet other criteria that rule out artificially fast ...
In road events, the course is not required to be a circuit, but the overall decrease in elevation between the start and finish shall not exceed 1:1000, i.e. 1 m/km. In road events, the start and finish points of a course, measured along a theoretical straight line between them, shall not be further apart than 50% of the race distance.
Rabbits Abel Kirui, Elijah Keitany [] and Wilson Kigen [] pacing Haile Gebrselassie and Charles Kamathi at the Berlin Marathon 2008. A pacemaker or pacesetter, sometimes informally called a rabbit, [1] is a runner who leads a middle-or long-distance running event for the first section to ensure a high speed and to avoid excessive tactical racing.
The marathon was conceived centuries ago and as of recent has been gaining popularity among many populations around the world. The 42.195 km (26.2 mile) distance is a physical challenge that entails distinct features of an individual's energy metabolism. Marathon runners finish at different times because of individual physiological characteristics.
A pace is a unit of length consisting either of one normal walking step (approximately 0.75 metres or 30 inches), or of a double step, returning to the same foot (approximately 1.5 metres or 60 inches). The normal pace length decreases with age and some health conditions. [1]
The race distance varied from 40 to 42 kilometres (25 to 26 mi) in the early editions as it was typically based upon the distance between two points that the organisers felt were suitable. The 1908 London Olympics marked the introduction of the standard distance of 26 miles, 385 yards (42.195 km). [2]
However, in a championship race, where the goal of the racer is to win, the pace is typically slow in the beginning of the race and gradually speeds up for a sprint finish, often meaning the race is run with a negative split. [6] Typically, to run a world record, the runner must employ a near-optimal pacing strategy. [7] Threshold Pacing