We invited elite runners to run on the world's fastest treadmill to examine the difference between running fast and running far.
How Olympic Athletes Run: The Difference Between Speed and Distance |
 | | The New York Times |
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The fastest Olympic sprint was Usain Bolt's 100 meters at the London Games, averaging more than 23 miles per hour for 9.63 seconds. Marathoners, who run for two hours, top out at around half of Bolt's speed. |
The 100 meters and the marathon are at either end of the Olympic spectrum of running races. The sprints (100, 200 and 400 meters) are strictly about power and mechanics. The endurance races (1,500, 5,000 and 10,000 meters and the marathon) are all about the supply and demand of energy. The 800-meter race, while just two laps around the track, sits between them, the painful middle ground between a pure sprint and pure endurance. |
 | | The New York Times |
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We invited three elite runners — TyNia Gaither, an 100-meter runner, Olivia Baker, an 800-meter runner, and Jared Ward, a marathon runner — to run on the world's fastest treadmill. |
The common thread in all the events is speed. In the end, it's the only measure that matters; whoever crosses the finish line first wins. There is a single factor that determines a runner's speed, regardless of distance: how much force they deliver into the ground relative to their weight, said Peter Weyand, one of the world's foremost experts on how to run faster. |
Here's how we examined the differences between running fast and running far (but still pretty fast). |
Post-Run Refuel: What We're Consuming |
 | | The New York Times |
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When she began the Olympic trials in June, Dalilah Muhammad held the world record in the 400-meter hurdles — a grueling track-and-field race of 10 hurdles. |
But she lost it to Sydney McLaughlin at the U.S. trials in Eugene, Ore., when she finished in second place. |
The Tokyo Games will be Muhammad's chance to defend her 2016 Olympic gold medal in a highly anticipated event packed with talent. |
For decades, track and field, which moved to center stage at the Tokyo Olympics when it began on Friday, has focused on doping as its primary existential threat, Matthew Futterman writes. |
But a broader understanding of identity in recent years has forced track officials to confront more complex and ambiguous questions, like how society should accommodate the disabled, and what determines gender identity. |
 | | Natsumi Chikayasu |
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For most runners, that sounds pretty miserable. But there is evidence that the heat helps sprinters, Jeré Longman writes. |
Many competitors will embrace the hot weather, reveling in conditions that Carl Lewis, the nine-time Olympic champion sprinter and long jumper, calls "the Caribbean without the breeze." |
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