Running News Daily

It’s like an ultra, just with a plot twist.There’s something tempting and motivating about having a distinct finish line on the horizon. Runners love a good goal to work toward—and a good challenge that helps them get there.

That’s likely why a growing number of programs, training techniques, and events draw in new and seasoned runners who seek adventure. These trendy programs include Jennifer Aniston’s 15x15x15 workout (15 minutes on a stationary bike, elliptical, then treadmill), the 75 Hard challenge, Ironman competitions, and coast-to-coast ultramarathons. One of the latest to enter the workout chat is exploding on social media: the 4x4x48 challenge. So, we tapped two running experts to catch us up about the pros and cons of 4x4x48, then asked them for a safer, more sustainable way to try it if you’re not quite ready to go all in.

What the 4x4x48 Challenge Is All About

During the COVID-19 pandemic David Goggins, a retired Navy Seal, ultrarunner, endurance athlete, and public speaker came up with the 4x4x48 challenge. As he witnessed races being canceled around the world, Goggins wanted to offer an alternative endurance “event” that individuals could dare themselves to conquer outside of the classic race environment. 

To complete a “4x4x48 Goggins Challenge,” which will earn you a T-shirt if you take part in the official program during Goggins’ announced dates (it’s currently on hold, according to his website), athletes must: 

Run 4 miles 

Repeat every 4 hours

Continue this pattern for 48 hours

All in, a 4x4x48 challenge calls for running 48 miles in 48 hours. For those who aren’t runners, Goggins suggests swapping in another form of cardio (such as swim, bike, or row, for example) for 45 to 60 minutes every four hours.

For some runners, four miles feels like an easy shake-out or a warmup. For others, that’s the longest they’ve ever tackled. Regardless of how much or how often you run, there are some important factors to consider before deciding to attempt a 4x4x48.

The Benefits of the 4x4x48 Challenge

Challenging yourself with high-intensity workouts can be beneficial as part of a well-rounded training program, which should include sufficient rest, recovery, and exercise variety, says Nicole Thompson, ACE-CPT, a San Diego, California-based personal trainer, health coach, group fitness instructor, and medical exercise specialist.

The 4x4x48 challenge is certainly high-intensity and high-frequency. Thompson says that the potential pros for a 4x4x48 challenge include:

Mental Toughness

Successfully completing a task this tough “requires mental strength, discipline, and determination, which can enhance your mental resilience and willpower,” she explains.

Increased Calorie Burn

Running for extended periods at regular intervals can result in significant calorie expenditure. A 150-pound runner can expect to burn around 450 calories during each four-mile stint at a 10-minute-per-mile pace. Over the course of the entire 4x4x48 challenge, this tallies up to 5,400 calories. This is nearly double the 2,900 or so the same person would burn during a four-hour marathon.

Possible Improved Cardiovascular Fitness

“This intense running schedule will challenge your cardiovascular system, which could improve endurance and aerobic capacity,” Thompson says. Although adaptations and improvement typically occur over the course of weeks and months with consistent training—rather than in a mere two days—participants may notice some improvements in cardiovascular capacity after they recover.

Practice in Time Management

Sticking to a strict schedule requires excellent time management skills (and likely, a trustworthy alarm), which can be beneficial in other areas of life, such as work or school.

The Drawbacks of the 4x4x48 Challenge

It’s vital to keep safety top of mind and avoid pushing yourself beyond your limits, Thompson advises, which would only set back your fitness journey—not progress it.

“Honestly, for most runners, the 4x4x48 challenge will have more cons than pros,” believes Erin Beck, NASM-CPT, an Orange County, California-based director of training and experience for STRIDE Fitness. “The structure doesn’t allow your body proper recovery and it requires a high mileage count that the average athlete won’t be ready for.”

According to Thompson, the following are possible drawbacks of the 4x4x48 challenge:

Overtraining and Injury Risk

“The risk of overtraining is high due to the intensity and frequency of the runs, which can lead to fatigue, muscle strains, or other injuries,” Thompson says.Sleep Disruption

The frequent runs will very likely disturb your usual sleep schedule (unless you normally get less than four hours, which we don’t recommend). In turn, this can affect recovery and overall performance.

Lack of Recovery Time

With only four hours between runs, your body may not have sufficient time to bounce back, increasing the risk of injury and burnout.

Nutritional Challenges

Remember that calorie count we mentioned? Eating and hydrating enough during the 48 hours can be difficult, and inadequate fueling may lead to performance issues or some serious health-harming ripple effects, such as dehydration or forcing your body to use muscle mass rather than energy from the food you eat to power your run. (Don’t miss our complete guide to what happens when runners don’t eat enough.) 

“This is an extreme and highly demanding physical challenge,” Thompson says. If you do a 4x4x48 challenge, “it’s not recommended to do this type of run frequently or on a regular basis. Always prioritize your overall health and well-being by consulting with a qualified coach or trainer to ensure the challenge aligns with your fitness goals and capabilities.”

And be sure to run this challenge—or any endurance event—by your doctor to get their thumbs up to ensure it’s a wise choice for your fitness level and overall health, Thompson adds.

Why Sleep Is Such a Limiting Factor in 4x4x48

Sleep is essential not only for optimal performance and recovery, but also for overall health and longevity. A 4x4x48 challenge makes it really tough to get the recommended seven to nine hours of sleep, and the snooze time participants do get is interrupted and fairly likely to be low-quality. 

“While doing this type of intense running challenge for two days may not have a long-term impact on overall health and recovery, it can lead to acute sleep deprivation, which can have immediate effects,” Thompson says.

Thompson explains that in just 48 hours, sleep deprivation can:

Lead to decreased focus, attention and memory; essentially impairing cognitive function

Compromise coordination and reaction times, increasing the risk of accidents or injuries during the runs

Raise cortisol levels, affecting the body's ability to handle stress and recover properly

Weaken the immune system, making you more susceptible to illnesses

Increase irritability and mood swings, while decreasing emotional resilience (basically, making you not-so-pleasant to be around)

For those who opt into the 4x4x48 challenge, it’s essential to prioritize R&R as much as possible during the breaks between runs. 

“Even brief naps and dedicated periods of rest can be beneficial for recovery,” Thompson says. “Then once the challenge is complete, be sure to allow yourself enough time to catch up on sleep and give your body the chance to fully recover.”

Our bodies have a magical way of slowly getting back on track after a night or two of less-than-stellar sleep, Beck says. That said, it’s crucial to not over-tax your system—and carve out time for an extra hour or two of sleep each night—until your body has time to bounce back from the daunting physical (and mental) demands of something like 4x4x48.

A Better Way to Try the 4x4x48 Challenge

For most people, it would be best to avoid attempting this type of run more than once, if at all, Thompson says. Or stick to once or twice per year, max. And exercise caution if you do decide to do it, stopping if you feel aches or pains and prioritizing that recovery.

“It’s more practical and beneficial to focus on a well-rounded and sustainable training program that includes a mix of running, cross-training, rest days, and proper recovery,” Thompson adds.

If you’re really craving a challenge, ante up and give one of these Beck- and Thompson-designed modifications a shot:

→ Beginner: Run 4 miles per day, 4 days per week for 48 weeks. “Over the course of a year, this will help you safely increase your stamina, burn calories, tone your entire body, rack up the miles and support your heart health,” Beck says.

→ Intermediate: Run 4 miles every 12 hours for 48 hours.

→ Advanced: Run 4 miles every 8 hours for 48 hours. 

Both of these latter options will allow for a nearly-full night of sleep, plus more recovery time between runs. 

Regardless of which path you choose, if you decide to try some form of 4x4x48 challenge, “pay close attention to how your body responds to the challenge. If you feel excessively fatigued, experience persistent pain or notice signs of overtraining, consider cutting back or stopping the challenge,” Thompson says. And if you finished the challenge, make sure to take the next few days off from exercise. 

The Bottom Line on 4x4x48

The 4x4x48 challenge is an endurance running event that requires zero qualifier, entry fee or specialized course. It might appeal to the ultramarathoner who’s looking to rack up mileage in a new manner. But running 4 miles every 4 hours for 48 hours is very demanding on the body and brain, so proceed with caution and train your way up to that mileage, rather than just jumping right into it. 

It’s also wise to take time to reflect on why you’re feeling called to try the 4x4x48 challenge, if you are. Will running in this way get you closer to your health and fitness goals? Or is seeing pals and athletes on social media creating some FOMO?

“Ask yourself: ‘Is this 4x4x48 something I can do to stay fit for the rest of your life? And is it a healthy approach to fitness for you?’ Your journey has to be sustainable to be successful,” Beck says.

The future of American distance running may have just announced itself.

Luke Surface, an 8th-grade student-athlete from North Raleigh Christian Academy in Raleigh, North Carolina, delivered a performance that stunned the track and field community after taking on some of the nation’s best high school runners at Nike Outdoor Nationals.

Competing at the legendary Hayward Field in Eugene, Oregon — one of the most iconic venues in American distance running — Surface lined up in the boys championship 5,000 meters against a field dominated by high school seniors, including several athletes preparing to compete at the NCAA Division I level.

Despite being one of the youngest runners in the race, the 14-year-old held his own against the elite competition, finishing eighth in an incredible 14:25.88. The performance set a new national middle school record, averaging approximately 4:39 per mile for more than three miles.

That kind of time is fast enough to win many high school state championships across the United States and meets qualifying standards for several major NCAA Division I conference competitions — a remarkable achievement for a runner who has not yet entered high school.

But Surface’s historic 5,000m performance was only the latest chapter in a season filled with record-breaking moments.

Earlier in May, he clocked 8:52.03 for 3,200 meters at the NCISAA Division I State Championships in North Carolina, breaking another national middle school record. His converted two-mile time of 8:55.12 surpassed the previous world-best mark for a 14-year-old age group, previously held by Vincent Recupero.

During the previous cross-country season, Surface also made headlines when he ran 15:12 at the adidas XC Challenge, finishing second while competing against runners who were several years older.

Across cross country, two miles, and the 5,000 meters, Surface has continued to prove that his talent is far beyond his age group. While he still has four years of high school competition ahead before reaching the college level, his performances have already placed him among the most exciting young distance runners to watch.

The American high school 5,000-meter record currently stands at 13:32, set by Lex Young in 2023 — a mark Surface is not yet close to challenging. However, his remarkable progression at such a young age has caught the attention of the running world, with many eager to follow how far his extraordinary journey can go.

For now, Luke Surface remains an eighth grader rewriting the record books — and his story is only beginning.

DOHA, Qatar – Ethiopian distance running is once again making a powerful statement on the global stage. Following the Doha Diamond League meeting, Ethiopia has achieved a remarkable clean sweep of the women's 3000m/5000m standings, occupying all eight leading positions in one of the most competitive disciplines in world athletics.

Leading the charge is Likina Amebaw, who sits comfortably at the top of the rankings with 22 points. Close behind is fellow Ethiopian star Freweyni Hailu on 14 points, while Medina Eisa occupies third place with 12 points. The dominance continues through the rest of the leaderboard, with Senayet Getachew, Hawi Abera, Aleshign Baweke, Marta Alemayo, and Bernesh Dessie completing an extraordinary Ethiopian monopoly of the standings.

The achievement highlights Ethiopia's exceptional depth in women's distance running, where a new generation of athletes continues to emerge and challenge for global honours. Rather than relying on a single standout performer, Ethiopia has assembled a formidable squad capable of controlling races and collecting points across multiple Diamond League meetings.

While the current standings paint a picture of complete Ethiopian supremacy, the battle for the Diamond League title is far from over. Several meetings remain on the road to the season finale, leaving plenty of opportunities for rivals to close the gap and for positions within the Ethiopian contingent to shift dramatically.

For now, however, the spotlight belongs firmly to Ethiopia. The East African powerhouse has transformed the women's 3000m/5000m standings into an all-Ethiopian affair, sending a clear message to the rest of the world that the race for Diamond League glory will likely run through Addis Ababa.

The question now is whether Likina Amebaw can maintain her advantage and finish the season as the overall leader, whether Freweyni Hailu or Medina Eisa can mount a successful challenge, or whether another athlete will produce a late-season surge to rewrite the script.

One thing is certain: the road to the Diamond League Final promises a fascinating battle among some of the finest distance runners on the planet.

Kenyan athletics superstar and world champion Beatrice Chebet has officially entered a beautiful new chapter in her life after welcoming a baby boy.

The 26-year-old track sensation, born on 5 March 2000, has built a remarkable legacy as one of the greatest distance runners of her generation. Chebet is a world record holder in the 5000m, 10,000m and road 5km, with a career decorated by historic victories on the biggest stages.

She made history at the 2024 Summer Olympics by winning gold medals in both the 5000m and 10,000m, before achieving the same remarkable double at the 2025 World Athletics Championships. Her medal collection also includes a 5000m silver medal at the 2022 World Athletics Championships and bronze at the 2023 World Athletics Championships.

Beyond the track, Chebet has also dominated cross country, becoming a three-time world champion after winning the junior title in 2019 and senior titles in 2023 and 2024. She has also claimed major 5000m victories at the 2018 World U20 Championships, 2022 Commonwealth Games and the 2022 African Championships in Athletics.

Now, the Kenyan star is celebrating a different kind of milestone — becoming a mother.

Sharing the joyful news, Chebet introduced her newborn son with a heartfelt message filled with love and excitement:

“Tiny hands, tiny feet, and a love so big! A beautiful new chapter begins. Welcome to our world our sweet little baby boy!”

The arrival of her son marks a special moment away from competition, as the world champion embraces motherhood while carrying the pride of a nation that has watched her achieve greatness.

Messages of congratulations have poured in from fans and the athletics community, celebrating the new chapter for one of Kenya’s most successful athletes.

As Beatrice Chebet adds motherhood to her list of remarkable achievements, the champion now begins a new journey filled with love, joy, and unforgettable moments with her baby boy. 

Jake Wightman delivered a masterclass in championship racing as he surged to the men's 800m title at the UK Athletics Championships, holding off a determined challenge from Ben Pattison in a thrilling finish.

In a race defined by patience, positioning, and precise execution, Wightman waited for the perfect moment to strike before unleashing his finishing kick down the home straight. The former world champion crossed the line in 1:45.40, just doing enough to edge Pattison and secure the national crown.

The contest lived up to expectations, bringing together two of Britain's finest middle-distance talents in a tactical battle where every move carried significance. With the pace controlled through the early stages, the field remained tightly packed, setting the stage for a dramatic final lap.

As the bell rang, the intensity immediately rose. Pattison looked poised to seize control and pushed hard in the closing metres, but Wightman's experience and race awareness proved decisive. Drawing on years of competing at the highest level, he maintained his composure under pressure and found the extra gear required to stay ahead when it mattered most.

The victory marks another significant chapter in Wightman's decorated career and serves as a timely statement of intent as the international season gathers momentum. More importantly, it showcased the qualities that have made him one of Britain's most respected middle-distance athletes — tactical intelligence, resilience, and an ability to deliver in the biggest moments.

For Pattison, the narrow defeat will provide encouragement rather than disappointment. His performance confirmed his growing status among Britain's elite 800m runners and highlighted the depth of talent currently thriving in the event.

But on this occasion, the spotlight belonged to Wightman. In a race where the margins were razor-thin, he executed his plan to perfection and walked away with the UK Athletics Championship title.

Remember the name Gout Gout.

At just 18 years old, the Australian sprint prodigy is already commanding global attention and fueling conversations about the future of track and field. In a sport constantly searching for its next superstar, Gout is rapidly emerging as one of the brightest talents the world has seen in years.

His latest statement came at the prestigious Ostrava Golden Spike meeting, where he stepped onto the track alongside some of sprinting's biggest names, including reigning world champion Noah Lyles. Far from being overwhelmed by the occasion, the teenager delivered a composed and confident performance, finishing third in the 150m in 14.96 seconds against two of the fastest athletes on the planet.

Yet impressive as that performance was, it is not the result that has the athletics community buzzing most.

Earlier this year, Gout stunned the sprinting world by clocking an astonishing 19.67 seconds for 200m, setting a new world Under-20 record. The performance instantly elevated him from promising prospect to genuine phenomenon.

What makes the achievement even more remarkable is the historical context. At the same age, Gout was faster than sprint legend Usain Bolt. Comparisons to the Jamaican icon are inevitable, not because records demand them, but because the raw numbers are impossible to ignore.

Of course, Gout's journey is only beginning. Like any young athlete, he still has room to grow, refine his craft, and gain valuable experience at the highest level. The road from teenage sensation to global champion is rarely straightforward.

But there is no denying the extraordinary potential that lies within him.

His speed, composure, and ability to perform under pressure have already marked him out as one of athletics' most exciting young stars. More importantly, he possesses the kind of talent that inspires belief that a new era of sprinting may be on the horizon.

The sport has always thrived on rivalries that capture the imagination of fans across the globe. With established champions such as Noah Lyles currently leading the way, the emergence of Gout Gout adds an intriguing new chapter to sprinting's future.

The next great rivalry may already be taking shape.

And one of its leading figures is still only a teenager.

For now, the message is simple: remember the name Gout Gout. The future is arriving faster than anyone expected.