Ultrarunning has grown exponentially in the 21st century

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.

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.

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).

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.

Some Nike shoes are actually making runners too fast

In 2018, Kenyan runner Eliud Kipchoge lowered the world marathon record to 2:01:39 in a pair of Nike Vaporflys. The unusually thick running shoes sparked controversy around the shoe regulations for professional runners.

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

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.

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.

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.

The oldest marathoner was 100

Fauja Singh was 100 when he completed the Toronto Waterfront Marathon in 2011 at 8:11:06. Incredibly Singh didn't start running until the age of 89.

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.

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.

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.

The 100 most significant sports moments between 2000 and 2025

This list ranks the 100 most significant sports moments of the first 25 years of the 21st century. The editors compiled the collection based on a list of factors, including the "collective joy" factor, whether it made you curse in disbelief, and how much it transcended the sport and entered the broader culture. The top moment: The improbable "helmet catch" during the Super Bowl in 2008.

Global life expectancy has more than doubled since the 1850s

The human species experienced a dramatic increase in expected lifespan over the past 150 years. Antibiotics, improved sanitation, and better worldwide food distribution are a few factors contributing to this rapid transformation. Use this interactive resource to explore longevity gains over time and compare these improvements across the globe.

The 'ultrawealthy' in 2026 hold $30M or more

This group of ultra-high-net-worth individuals holds more than double the assets of the top 1% of Americans (and this group holds over a third of all American wealth). These folks go beyond a well-funded retirement plan and a paid-off home common to middle-class households with investments in private equity, commercial real estate, and alternative assets like art.

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.

Explaining the rise in adult sports leagues

Community sports leagues shifted from publicly supported entities to privatized ones in the 1990s, as tech advances streamlined registration processes. Millennial interest drove significant growth in social sports leagues for adults, growing much faster than other kinds of sports. A few industry leaders have benefited from this shift.

Interest in the X Games is growing fast among younger teens

The 2025 X Games Salt Lake City delivered double-digit viewership growth—up 12% across ESPN platforms from 2024—with a 328% surge among 12- to 17-year-olds.

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

Obesity rates have more than doubled worldwide since 1990

In the US alone, the percentage of the population meeting the clinical standard of obesity rose from less than 20% to more than 40% over the past three decades. This rise has been matched by many countries across the globe, from industrialized to developing nations.

How endurance athletes can build resilience

Long-distance runners and other endurance athletes can improve their performances using tips explored in this article. Findings from two recent studies show that strength training, high-altitude training, and intense interval sessions are all potential methods for ameliorating long-term athletic capabilities.

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.

X Games emerged during “extreme” marketing boom in the 1990s

Launched as the “Extreme Games” in 1995, the event tapped into a trend from the '90s of brands labeling products and events “extreme” to appeal to youth culture—mirroring marketing in soft drinks, snacks, and video games.

Pickleball's popularity has exploded in recent years

Pickleball has seen rapid growth in the US, with around 50 million Americans playing in 2022. It doesn't appear to be slowing any time soon.

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.

The beer mile blends running and drinking

The event requires competitors to drink a 12-ounce beer for every lap around the track. It may sound like fun (or a nightmare, depending on your disposition), but for some it's a serious business, with an annual world championship.

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.

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.

Is human evolution speeding up or slowing down?

In the past 3,000 years, many populations have evolved genetic adaptations to their local environments. People in Siberia and the high arctic are uniquely adapted to survive extreme cold. The Bajau people can dive 70 meters and stay underwater for almost 15 minutes. So what are other recent changes? And will our technological innovations impact our evolution?

Indoor rock climbing gyms have doubled in a decade in the US

The business saw a jump in growth amid low real estate costs after the 2008 Great Recession. The sport's culture has shifted from serving misfit loners to more family-friendly spots.

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).

A deep dive into the lives of Guinness World Record addicts

Most people don't hold any world records. Then, there's this group of adventurers, who are racing to own the most. A look at the ambitious world record pursuers racking up hundreds of accomplishments.

The first modern marathon was at the 1896 Olympic Games

The modern marathon was created for the revived Olympic Games in 1896, with the course starting in Marathon and ending in Athens. The race was won by Spiridon Louis, a Greek water carrier who surged in the last stretch to the delight of the hometown crowd.

Roughly 10% of the world's population is older than 65 (2023 data)

With recent advances in medicine, sanitation, and nutrition, expected lifespans have rapidly risen around the globe—resulting in a rapidly aging global population. The worldwide distribution has seen a nearly 600% jump in the population of people aged 65 and older.

The evolution of the Olympics from ancient Greece to the modern world

The Olympic Games have evolved from a sacred footrace in 776 BCE honoring Zeus to a global celebration of athletic excellence and unity. Ancient Greek city-states set aside their conflicts under a sacred truce for events like wrestling and chariot racing. Though the Games ended in 393 CE, Pierre de Coubertin revived them in 1896, adding modern elements like the torch relay and the inclusion of women. Watch 1440's breakdown of the historic event here.

Track how college tuition has changed over the years across different types of institutions

The dramatic rise in the cost of higher education has a number of causes, ranging from increased number of students to administrative expansion at institutions. Even when accounting for inflation, the cost to pursue a degree has tripled over the past six decades. See data from the National Center for Education Statistics breaking out costs by institution type and year.

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.

Extreme Games rebranded as X Games for global appeal

In 1996, ESPN shortened “Extreme Games” to “X Games” to make the name easier to translate for international broadcasts and to strengthen branding as the competition expanded to global markets.

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.

The average cost of college has doubled in the 21st century

Even for students attending in-state, public universities, the cost of attending college has risen dramatically, exceeding $27K with fees and living expenses per year.

Tennis' global evolution

In the 1970s and 1980s, American men and women dominated the top 100 rankings on both tours. But as each tour expanded its global reach, the American dominance declined. This Bleacher Report analysis breaks down the national make-up of the top 100 players for each decade. View maps that show which country gained and lost rankings through each decade and see who is the top country now.

More than half of today's family offices—the private companies that help ultrawealthy individuals manage their fortunes—were incorporated after 2010.

Palantir CEO Alex Karp is an avid skier

Karp takes health and fitness very seriously and reportedly skis more than five hours each week. He has frequently recommended Norwegian-style cardio training, which emphasizes the length of a workout rather than effort level. In 2023, Karp reported having just 7% body fat—similar to that of Olympic swimmer Michael Phelps during the 2008 Olympics.

The marathon’s roots can be traced back to a Greek myth

Legend has it that the first marathon took place in 490 BCE, when Pheidippides, an ancient Greek soldier, ran from the Battle of Marathon back to Athens—approximately 25 miles—to inform his people they’d defeated the Persians. The story is likely apocryphal: No Greek historian mentioned it until over 500 years later.

World War II innovations helped advance car racing

Modern American auto racing began in the 1920s with bootleggers modifying cars to outrun authorities. World War II innovations like better engines and surplus parts fueled post-war racing. By 1947, Bill France Sr. founded NASCAR, creating a unified league with consistent rules, transforming stock car racing into one of America’s favorite sports.

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.

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.

Ranking the most popular undergraduate degrees of the last decade

Roughly 2 million Bachelor's degrees are awarded by colleges and universities in the US every year, but within that number there are big shifts in the popularity and decline of certain majors. This data visualization breaks down the biggest gainers...