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  2. Half marathon world record progression - Wikipedia

    en.wikipedia.org/wiki/Half_marathon_world_record...

    [7] [8] The earliest half marathon world record accepted by the Association of Track and Field Statisticians is that of 67:01 minutes run by Englishman Brian Hill-Cottingham in Romford in 1960. [ 9 ] [ 10 ] For women, the earliest ARRS-recognised time is that of American Kathy Gibbons , who finished the distance in 83:56 on 7 March 1971 in ...

  3. Half marathon - Wikipedia

    en.wikipedia.org/wiki/Half_marathon

    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]

  4. Steve Prefontaine - Wikipedia

    en.wikipedia.org/wiki/Steve_Prefontaine

    Steve Roland "Pre" Prefontaine [1] (January 25, 1951 – May 30, 1975) was an American long-distance runner who from 1973 to 1975 set American records at every distance from 2,000 to 10,000 meters.

  5. Collatz conjecture - Wikipedia

    en.wikipedia.org/wiki/Collatz_conjecture

    This plot shows a restricted y axis: some x values produce intermediates as high as 2.7 × 10 7 (for x = 9663) The same plot as the previous one but on log scale, so all y values are shown. The first thick line towards the middle of the plot corresponds to the tip at 27, which reaches a maximum at 9232.

  6. Lonely runner conjecture - Wikipedia

    en.wikipedia.org/wiki/Lonely_runner_conjecture

    The lonely runner conjecture states that each runner is lonely at some time, no matter the choice of speeds. [1] This visual formulation of the conjecture was first published in 1998. [2] In many formulations, including the original by Jörg M. Wills, [3] [4] some simplifications are made.

  7. Shelly-Ann Fraser-Pryce - Wikipedia

    en.wikipedia.org/wiki/Shelly-Ann_Fraser-Pryce

    At just over 5 feet tall, [2] Fraser-Pryce is more petite than most female sprinters. [27] [315] She recalled that when she started training at the University of Technology, "everyone [said] I was too short and I shouldn't think about running fast." [27] A prototypical stride rate runner, she relies on cadence and a high stride frequency in her ...

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