Some Nike shoes are actually making runners too fast

The Adidas shoes that helped break the marathon's 2-hour barrier

Two men broke the two-hour mark at the 2026 London Marathon, a feat previously unofficially achieved only by Eliud Kipchoge, thanks to a number of aides not permitted in an official race. Both men who broke the two-hour barrier in London wore the same shoe, the Adizero Adios Pro Evo 3, a new model that weighs just over three ounces.

Eliud Kipchoge broke the 2-hour mark in a 2019 exhibition

In 2019, Kenya's Kipchoge ran 1:59:40.2, though it was part of an exhibition that included numerous aids—including elite runners cutting his wind and a laser marking the necessary pace—not permitted in officially sanctioned events. As such, it is not eligible for the world record.

Watch Kipchoge break 2 hours in the marathon

The feat was once considered impossible, but one of the world's greatest marathoners got to work (with the help of a team of scientists and some of the world's most elite distance runners) to break that boundary in Vienna in 2019. The final stretch of the run is an emotional moment for Kipchoge, who doesn't even appear to be winded.

Nike couldn’t sign legendary distance runner Steve Prefontaine due to regulations

Because of amateur running regulations, Prefontaine—who held every American running record from 2,000 to 10,000 meters at the time—couldn’t do a paid endorsement for Nike. So Nike’s Phil Knight decided to give him a $5K yearly stipend and print business cards that said Prefontaine was the “National Director of Public Affairs.” When asked what that meant, Knight said, “it means he can run fast.”

Sabastian Sawe holds the world record for the marathon after running the world's first official sub-2-hour marathon.

Running became more popular in the mid-20th century

Once considered a fringe activity, running eventually became an American interest. The trend was spurred in part by the 1966 book "Jogging," which was cowritten by Bill Bowerman, the cofounder of Nike.

The first shoes Jordan got from Nike were against NBA regulations

The initial mockups Nike gave Jordan were entirely black and red. The NBA had strict rules around shoe color at the time that these colors violated. The story goes that Nike paid the $5K fine for each game that Jordan wore the shoes in, but there’s no photographic evidence that Jordan ever wore them in a game at all. Regardless, Nike created the “banned” ad, capitalizing on the controversy.

Bill Bowerman brought running for fitness to America

Nike cofounder Bill Bowerman once cowrote a book with a doctor, W.E. Harris, called “Jogging.” Published in 1967 by New York, Grosset & Dunlap, it introduced America to the idea of running for health, instead of just sport—and kicked off the fitness frenzy of the 1970s that fueled Nike’s early success. (Some readers may experience a paywall).

The marathon is only getting more popular

The marathon has become a part of popular culture, with races in nearly every major city. The largest is the New York City Marathon, which started in 1970. Over 55,000 runners participated in the 2024 race. Its popularity doesn’t appear to be slowing, with younger generations increasingly lacing up their shoes for the race of a lifetime.

The most expensive shoe ever sold is from Nike

A prototype of Kanye’s Air Yeezy’s from 2008 sold for $1.8M in 2021. Kanye West wore the shoes at a Grammys performance in 2008, and they became one of the most sought-after samples in sneaker history.

A NASA engineer came up with the idea for the air-cushioned Nike Air shoes

Frank Rudy came to Nike with the idea of using air capsules in the soles of running shoes to provide better cushioning. The first shoe with this technology, the Tailwind, came out in 1979.

Ultrarunning has grown exponentially in the 21st century

Ultrarunning, generally defined as races 50k and longer, has exploded in the past few decades. In 2000, there were 89 official races; in 2023, there were nearly 760. That's a 753% increase.

Watch Bill Nye discuss biomechanics and sustainability while shopping for sneakers

While exploring sneaker history and technology, Nye covers the science of structural design, air bubbles and materials, including algae foam. He once voiced a 20-minute guided run on the Nike Run Club app.

Runners typically burn 2,600 calories during a marathon

They also burn between 5-10 pounds of water weight, often feel more focused and elated (thanks to increased neurotransmitters), and, oddly enough, temporarily grow about a half-inch shorter due to back muscles tensing.

Kanye abruptly left Nike in 2013 and took his Air Yeezys to Adidas for $10M

In 2009, Kanye West became the first non-athlete Nike produced a signature shoe for. However, Kanye left Nike for the company’s rival, Adidas, just a few years later. Kanye said Nike was stifling his creative vision, and he felt like he wasn’t getting enough royalties.

Bill Bowerman got the idea for the breakthrough waffle-knit running shoe from a waffle iron

Nike cofounder Bill Bowerman was trying to find new ways to create traction for his runners on artificial turf. He looked at the waffle iron and realized that the pattern would work for the shoes’ soles.

Gen Z is increasingly interested in running marathons

The race has become a popular event for young people. Over 12,000 20-somethings signed up for the New York Marathon in 2024. That's a significant increase from 2023 (9.987) and 2022 (8,039).

Nike’s labor practices became controversial in the 1990s—leading to widespread protests of the brand

In the 1990s, Nike came under fire for its use of factories with unsafe working conditions and child labour to produce its products. While Nike didn’t own the manufacturing sites, many people felt Nike was ultimately responsible for using sweatshops in countries like Vietnam and Thailand.

One ethnic minority in Kenya, called the Kalenjins, is responsible for 73% of the country's Olympic gold medals in running.

Frank Shorter was the first American to win the 26.2-mile Olympic marathon

The running legend became the first American to win the 26.2-mile Olympic marathon in 1972 at 2:21:19. The televised race contributed to a nationwide running boom and helped popularize the event.

There are over 800 annual marathons, but only seven deemed World Marathon Majors

The races—Tokyo, Boston, London, Berlin, Chicago, Sydney, and New York City—are on some of the best-known courses in the world and are run by some of the sport’s top athletes.

In 1980, a woman cheated her way to a Boston Marathon win

Rosie Ruiz, an unknown runner, finished first in the Boston Marathon, cutting her qualifying New York time by over 20 minutes. The world would soon learn, though, that Ruiz hadn't run the entirety of either race, something that her first interviewer seems to piece together by her strange answers to basic questions.

The gray area that makes PEDs seem like leveling up to hardcore athletes

Doping in sports is broadly condemned as unsafe and unfair. Significant controversies in major sports, including baseball and cycling, have been prompted by the widespread use of performance-enhancing drugs, which are described as clear-cut dangers and abuses of the rules. But to many competitors, the line between a PED and the next smart technique to adopt is unclear. This podcast episode explores that gray reality.

NFL kickers are kicking the ball farther than ever before

A combination of training, technique, and new rules regarding equipment has led to a sharp improvement in kicking since 2020. Certain players are now allowed to keep footballs with them throughout the practice week and play with a ball of their choosing during games.

The 1904 Olympic marathon was a bizarre spectacle

When the Olympics first came to the US, the race was still a fringe event with few established rules. That led to an absurd comedy, with competitors ingesting poison, hitchhiking 11 miles of the course, and occasionally sipping brandy.

Chris Nikic is the first person with Down syndrome to complete several marathons

In March 2024, Chris Nikic finished the Tokyo Marathon in 5:39:41. That was the final step towards his ultimate goal of earning the Abbott World Marathon Majors Six Star Finisher distinction. It recognizes runners who have finished Tokyo, Boston, London, Berlin, Chicago and New York.

Nike went public in 1980, and the first share sold at $22

Nike stock plummeted in the four years that followed the company’s initial public offering (IPO). The company’s deal with Michael Jordan in 1984 ultimately revived investor confidence.

Nike was almost named ‘Dimension Six’

Jeff Johnson, the company’s first full-time employee, said the name came to him in a dream just before Blue Ribbon Sports filed a patent for the “Nike” football shoe. Nike cofounder Phil Knight wanted to name the company “Dimension Six,” but was ultimately convinced that a one-word name would be better. (Some users may experience a paywall.)

An impostor convinced Frank Shorter he’d lost the gold

The 1972 marathon at the Munich Games featured a dramatic finish, thanks to someone posing as a competitor entering the stadium before Shorter. The stunt confused Shorter and the crowd (and enraged the American television announcers) as he entered the final stretch.

Nike started out as a Japanese shoe distributor called Blue Ribbon Sports

Nike cofounder Phil Knight’s first business venture was distributing Onitsuka Tiger running shoes in America. Knight would drive to track meets and sell the shoes out of the back of his car.

Bill Bowerman’s daughter-in-law found the waffle iron he used to create a breakthrough shoe

Nike cofounder and University of Oregon track coach Bill Bowerman poured polyurethane into a waffle iron for his first attempt at creating the revolutionary waffle-knit sole. The waffle iron, which was found in his backyard, now sits in Nike’s headquarters.

Roger Bannister was the first person to break the 4-minute mile, a feat he accomplished while he was enrolled in medical school.

During a 2013 speed run of 'Super Mario 64,' the protagonist was inexplicably warped up to a new location—a glitch that would later be attributed to a cosmic ray flipping a bit within a byte responsible for tracking Mario's height.

An ‘ultramarathon’ is any race longer than a marathon

The event is a catchall for any event longer than a marathon, with some races hundreds of miles long. Despite the inherent risks, including death, the sport has exploded in recent years.

Nike's Phil Knight ran for Bill Bowerman at the University of Oregon before they became business partners

They became business partners when Knight tried to sell the Onitsuka Tigers to Bowerman for the Oregon track team. Bowerman told Knight he didn't just want the shoes; he wanted in on the whole deal.

The modern marathon’s arbitrary distance is thanks to the British royal family

In 1908, the London Games set the marathon distance to 26.2 miles to meet the British royal family’s request that the race start at Windsor Castle and end at their royal box. In 1921, that arbitrary distance became the official length for the marathon.

Colin Kaepernick’s ad with Nike won an Emmy

Colin Kaepernick’s 2018 “Dream Crazy” ad with Nike became a controversial touchpoint for American politics. While many liberals applauded Nike for siding with Kaepernick’s BLM protests, many conservatives boycotted and criticized the company.

Many startups now have shoes-off policies

This website keeps track of startups with "no-shoes" offices so you can browse a list of barefoot companies—plus, see which of them are hiring.

Heat-related complications are of greater concern for distance runners than cardiac threats

Analysis of more than 130,000 runners in Tel Aviv events during a seven-year period indicated that the runners were 10 times more likely to experience heatstroke than serious cardiac problems. Scientists suggest that runners should take 10 to 14 days to acclimate to a hot climate before tackling a serious run.

Nike is one of the world's most recognizable brands, partly due to its 'swoosh' logo.

Why Guinness stopped giving these world records

It's all fun until someone gets hurt. Here's an explainer on why Guinness, the world's official purveyor of superlative records, won't officiate certain events.

Why marathons are 26.2 miles (not 26)

Over 1,100 marathons are run every year, and they all share one oddly specific distance: 26.2 miles. From ancient Greece to a British queen's request, here's the surprising story behind the marathon's decimal.

Nike made $126M in the first year of Air Jordan sales

The first pair of Air Jordans hit shelves in 1985 for $65. The company expected to sell $3M worth of shoes in the first three years, but ultimately blew past that goal in the first year of sales.

Explore a guide to the most challenging marathons in the world, including races up Mount Everest Marathon, Mount Kilimanjaro, and the Inca Trail.

Strengthening your butt muscles can help protect against running injuries

More than 28 million people may go running in the US every week, yet people often get hurt—especially with knee injuries—and this podcast explores the science on what happens to our bodies when we run and the effects on our muscles and joints. It also discusses safety tips, including the need to only add more distance to your runs in tiny increments, and that strengthening glute muscles via single-leg glute bridges may be particularly protective against injuries.

Nike made retailers pay for Air Jordans upfront to guarantee stock

Instead of paying for the inventory sold, Knight locked retailers into iron-clad agreements, where the companies would pay upfront for Nike inventory (but at a 7% discount). Knight did this to leverage debt, allowing retailers a better chance at getting the wildly popular Air Jordans.

Nike only paid $35 for its famous swoosh logo—and cofounder Phil Knight didn't like it at first.

Kathrine Switzer was the first official female finisher in the Boston Marathon

A year after Bobbi Gibb’s unofficial finish, Kathrine Switzer registered under an androgynous name to avoid suspicion. Race officials unsuccessfully tried to remove her from the race while she was competing (pictured below), but she ultimately became the first woman to officially finish the race. In 1972, the Boston Marathon changed its rules to allow women to register.

Can we speed up our metabolisms?

Listen to this 31-minute podcast to better understand what science knows and doesn't know about metabolism, as well as the only thing that seems capable of changing it. Scientists understand that the difference between a so-called “fast” and “slow” metabolism does not affect one’s ability to lose weight.

The marathon was not an event in the ancient form of the Olympics

The ancient Olympics started with just one footrace, a roughly 3-mile jaunt dubbed the "dolichos." Over the centuries, it blossomed into multiple running events, field events, combat sports, and equestrian events—all performed in the nude. This list showcases eight more lesser-known facts about the ancient Games.