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  2. Negative split - Wikipedia

    en.wikipedia.org/wiki/Negative_split

    In order to achieve this time, each 5 km split would need to be completed in 14 minutes 13 seconds, producing a time of 1 hour 59 minutes 59.5 seconds. But in reality, all the 5 km splits were run within five seconds of each other, with every split past the 10 km point being between 14:12 and 14:14. [ 10 ]

  3. Peter Riegel - Wikipedia

    en.wikipedia.org/wiki/Peter_Riegel

    Race time prediction formula, running course certification. Peter Riegel (January 30, 1935 – May 28, 2018) was an American research engineer who developed a mathematical formula for predicting race times for runners and other athletes given a certain performance at another distance.

  4. Ineos 1:59 Challenge - Wikipedia

    en.wikipedia.org/wiki/INEOS_1:59_Challenge

    He then ran solo for the rest of the race, running a negative split and a 60:34 second half. He crossed the line in a world record time of 2:01:39, 78 seconds faster than Kimeto's previous world record. [16] [17] He next raced in the 2019 London Marathon in April 2019. A group of nine went through 10 kilometres (6.2 mi) in 29:01 and halfway in ...

  5. Kelvin Kiptum - Wikipedia

    en.wikipedia.org/wiki/Kelvin_Kiptum

    Running with a negative split, he took the victory with the fourth-fastest time ever of 2:01:53, becoming the third man in history to break two hours and two minutes. Only his compatriot and then-world record holder Eliud Kipchoge and Ethiopia's Kenenisa Bekele had run faster up to that point. Kiptum set the quickest second half in marathon ...

  6. NFL combine: Xavier Worthy sets 40-yard dash record of 4.21 ...

    www.aol.com/sports/former-texas-wr-xavier-worthy...

    The historic run came after the 20-year-old opened up with a 4.25 to beat anyone else in the field, recording a 10-yard split of 1.45 seconds that was the fastest split of the weekend.

  7. Naismith's rule - Wikipedia

    en.wikipedia.org/wiki/Naismith's_rule

    The simplicity of this approach is that the time taken can be easily adjusted for an individual's own (chosen) speed on the flat; at 8 km/h (flat speed) the route will take 4 hours and 6 minutes. The rule has been tested on fell running times and found to be reliable. [17] Scarf proposed this equivalence in 1998. [4] [6]

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