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Biggest Marathons in the World: Top 10 Largest Races Ranked by Participants

The London Marathon is currently the biggest marathon in the world. On 26 April 2026, 59,830 runners crossed the finish line on The Mall, a Guinness World Record that took the title back from New York.

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World's Most Iconic Running Track: Why Hayward Field Holds the Crown

Some venues simply host races. Hayward Field makes them.

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He Did What Scientists Said Was Impossible: Sebastian Sawe Runs the First Official Sub-2-Hour Marathon

Kenyan runner Sebastian Sawe did what generations of athletes, scientists, and coaches believed was virtually impossible: he crossed the finish line of the London Marathon in 1 hour, 59 minutes and 30 seconds.

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12 Things No One Tells You About Running

New to running (or returning) and surprised it feels awful at first? These 12 rarely mentioned lessons cover the real stuff gear costs, hunger, bad runs, weather, feet issues, and why you might still end up hooked.

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Harry Styles Breaks Three Hours at Berlin Marathon, Finishes Among Top 5% of 48,000 Runners

Harry Styles stunned marathon fans in Berlin 2025, running 2:59:13 under an alias and finishing 2,245th out of 48,000+

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Kenya’s Kennedy Kimutai Wins 2026 Paris Half Marathon as 50,000 Runners Fill the Streets

Paris welcomed 50,000 runners for the 2026 Paris Half Marathon, with Kennedy Kimutai and Ftaw Zeray taking the wins as crowds cheered along the Seine and through the Bois de Vincennes.

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LA Marathon Allows Runners to Finish at 18 Miles Due to Heat Forecast

Los Angeles Marathon organizers are adding a heat-safety option: if race-day temperatures climb too high, runners may stop just after mile 18 and still receive a finisher medal. With forecasts rising from 12–13°C at the 7 a.m. start to 25–27°C by midday, the McCourt Foundation says the goal is preventing dangerous heat illness.

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Jacob Kiplimo Sets New Half Marathon World Record with 57:20 in Lisbon

Jacob Kiplimo just rewrote the half-marathon record books in Lisbon, storming to a 57:20 victory without pacemakers, outkicking Nicholas Kipkorir late as Tsigie Gebreselama defended her women’s title in dominant fashion.

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Study Finds Vitamin D Helps Maintain Immune Health, but Does Not Improve Running Performance

Vitamin D can help runners hold onto healthy levels through the dark winter months, and may support immune markers, but this new study found it doesn’t translate into better performance like VO₂max, power, or strength.

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On Introduces Laceless Running Shoe Made by Robots in New South Korea Factory

On Running’s new LightSpray laceless shoe uses 32 robots to spray a seamless upper in just three minutes, cutting development from 18–24 months to as little as 3–4 and hinting at a faster, more automated future for running footwear.