Running News Daily

Super trainers are fast, fun, and maybe a little risky. Here’s what to know about these max-cushioned shoes. 

Banned shoes emerged courtside long before they found their way onto a marathon course. Legend has it that nearly 40 years ago, Michael Jordan laced up a pair of red-and-black high-tops in violation of the NBA’s approved uniform colors. 

In 2010, the league cracked down again—this time, for reasons besides aesthetics—on a pair of basketball shoes that were shown to increase a player’s vertical-jump height. Today, Nike’s Air Jordan brand is a household name and multibillion-dollar business, and shoemaker Athletic Propulsion Labs (APL) has since released additional banned styles (Superfuture and Concept X) of its performance-boosting kicks.

Though some speculate these bans were mostly crafty marketing, the same can’t be said about the wave of “illegal” shoes that is flooding the roadways on the feet of runners. Super shoes have proven a true performance boon to both elites and recreational runners on race day. Now the tech has trickled down to shoes for daily runs, ushering in super-thick, though still permissible, shoes that have created their own category: super trainers.

What Is a Super Trainer?

Technically, a formal definition doesn’t exist. But we’ll establish some general parameters.

Super trainers share many of the same qualities as super shoes built for race day: a tall stack height, efficient midsole geometry, high-powered super foam, and usually some sort of plate. But these trainers aren’t meant for racing, like a Nike Vaporfly or Saucony Endorphin Elite—they’re designed for everyday mileage.

Super shoes for racing have to balance cushioning and propulsion, but still be lightweight. Super trainers, though, can have beefier constructions that help to extend their life spans. For example, shoe brand On guarantees only four marathons from the Cloudboom Echo 3—that’s little more than 100 miles. Super trainers can handle more mileage, and should have the typical 300- to 500-mile range of a normal running shoe.

To do that, they may have more outsole rubber for durability. Their uppers are usually softer and thicker than a racing shoe’s, as well, with comfortably cushioned ankle collars and tongues. They tie up with sturdier laces and offer a more forgiving fit overall, closer to what you’d expect from a workhorse daily trainer. And, since super trainers aren’t made to toe a starting line, brands can pile on midsole foam in excess of the 40mm limit imposed by World Athletics.

But they’re more than just extremely cushioned running shoes. Super trainers have additional mechanisms and “super foams” geared toward running efficiency and energy return, explained below.

Anatomy of a Super Trainer

If we break down a super trainer into its key components, we see a recurring theme: a stack of super foam in the ballpark of 40mm (or more), a carefully sculpted midsole shape for propulsion, and a plate that harnesses those pieces and holds it all together. This is the tech that puts the “super” in super trainers; it needs to interact with the foot and the rest of the kinetic chain in specific ways to deliver the intended ride and energy return. 

Here’s what’s happening inside the midsole under your foot, and how these elements work to boost your stride. 

1. Rocker Geometry

When we talk about a rocker sole, we’re describing the curvature of the bottom of the shoe’s sole. Both the heel and the toe curve upward, away from the ground, to give the shoe a more rounded base. The result is a shape like that you’ll find on a rocking chair. This is needed because the shoes are so thick, they don’t bend under the forefoot for a smooth transition during your gait cycle. 

Shoe developers can also manipulate the inflection points of the rockers around a runner’s pace and foot strike to potentially manipulate transition time. Usually, you’ll find the most aggressive rocker designs in racing shoes. Still, pronounced rocker soles on super trainers are essential to make transitions comfortable. 

→ How do rocker soles work?

Rocker soles in shoes function to mimic the natural rockers of the foot to make us feel more efficient. The foot has three functional rockers—the heel (first), ankle (second), and forefoot (third)—that we use while walking and running. The heel bevel in a shoe prepares the foot to contact the ground and smooths out the shoe’s ride when you land. Forefoot rockers assist movement during toe-off, which generally means the toes and ankle joint don’t have to work as hard. 

For some runners, a stiff rocker sole can decrease demand on the calves by transitioning effort upward to the knee and hips. A runner’s experience will depend on their specific biomechanics, where the rocker is placed, and how their footstrike contacts it.

2. Super Foam

Polyether Block Amide, or PEBA, is a common foam compound for super trainer midsoles. (A popular trade name for the material is Pebax, made by a company called Arkema.) It’s the basis for foams like Nike ZoomX, Saucony Pwrrun PB, Puma Nitrofoam, and Asics FF Blast Turbo. Many of those brands leverage the same foam used in their top-tier racing shoes for their super trainer models.

Right now, PEBA-based foams lead the way for energy return. While current research and our own testing indicates that supercritical EVA and TPU blends are also impressive, PEBA has the edge more often than not. Why? It’s lighter than TPU and far softer and bouncier than supercritical EVA. Some iterations are firmer than others, depending on which brand’s flavor you try.

→ How does foam work?

Cushioning serves to absorb shock upon landing and provide overall comfort while running, but it can also return energy to the runner and stabilize the shoe. PEBA foams are especially lightweight, so brands can pile it on—both in thickness and in width—without the same weight penalty applied when using EVA or TPU materials. The additional width is just as important as the height. These shoes often need a wide platform of midsole material to remain stable.

Every brand’s PEBA-based foam compresses at a different rate, with varying amounts of responsiveness, so each offers a unique benefit based on the runner. For example, runners who land with lots of force can bottom out and crush a foam that’s too squishy, so they may prefer a firmer platform. A harder midsole can offer more support without any additional stability elements. On the other hand, a softer foam can provide more comfort, and research suggests that it may have a protective benefit for lighter runners. 

Keep in mind that dozens of pieces within a shoe, as well as countless runner-specific characteristics, come together alongside a super foam to deliver its specific ride and response. It’s not always possible to parse each element individually.

3. Plates

Not every super trainer has a plate in its midsole, but it’s increasingly common. That’s because—regardless of whether it’s made from TPU, EVA, PEBA, carbon fiber, or a mix—a plate stiffens the midsole and can add support. It may also give the ride some extra pop, but it largely functions to stabilize the shoe. The Adidas Adizero Prime X 2 Strung, which has a heel stack height of 50mm, requires two stiff carbon-infused plates.

Some shoes need less support and utilize pliable materials with thinner rod constructions or forgo full-length plates for ones that extend only halfway along the midsole.

→ How do midsole plates work?

While plates can add propulsion, research suggests that the true hero is the foam itself. A plate mostly serves to “facilitate motion and add stiffness to the sole to balance out the softer compliant foams,” says Matt Klein, DPT and founder of the Doctors of Running website and podcast.

He explains that the effects of stiff-plated shoes are not clear-cut. “Everything we know [about super trainers] is applied from super shoe and maximal shoe research. These shoes shift work up to the knees and hips. The ankles may do less, but that doesn’t always apply. If the shoe is too stiff, the ankles will actually end up doing more work. But once a midsole gets so thick, it may not need a plate; the amount of material naturally stiffens the ride.”

What Are the Benefits of Super Trainers?

Simply put, these shoes are so much fun to run in. They can lend a bounce to your stride that feels like bounding on a trampoline. And since the springy sensation and high energy return can help you move more efficiently, running fast feels easier.

Plus, a review of 63 research studies concluded that these trainers can also help attenuate shock and dampen some of the hard impacts from training. So, runners recover from hard efforts more quickly; they’ll lace up the next day feeling fresher and less sore than if they’d worn regular running shoes. And for those eager to increase mileage, this may allow some runners to increase their weekly workload with less fatigue and fewer aches and pains.

“These have the benefit of having similarities to super racing shoes. These shoe types certainly increase the capacity of work you can do, so I suspect those running higher miles will probably benefit most from these,” Klein speculates.

But, the recovery boost from super trainers can make it tempting to tack on too many miles too soon or overcook the pace on easy days. “Just because you are less sore does not mean you are at a lower risk for injury. You can still get injured with overdoing things,” Klein says.

Our wear-testers report that they’re able to run faster paces with less effort in super trainers, but it’s still important to keep easy jogs relaxed. Double-check your training log and pull back on the reins if you notice spikes in mileage or intensity outside your typical training volume. 

Are There Any Risks to Super Trainers?

Though they feel great, super trainers can have an impact on our natural gaits and biomechanics. “One of the injury risks for this shoe type is that it is so different from normal mechanics and footwear. The current evidence from super shoes and super-max stack-height shoes is that we tend to stiffen our legs in taller, softer shoes,” Klein says. “This is not bad short-term, but some evidence suggests long-term super-max stack-height shoes can actually increase joint loading due to that stiffening.”

“I suspect running in them a ton will cause less joint motion, as the body will stiffen up to find stability as shock absorption isn’t needed. This may be great for a recovery run/faster run, but trying to transition back to normal shoes can take time if you only run in these and super racing shoes.” Klein recommends making the transition slowly to avoid injury and keeping more than one pair of running shoes in your rotation. 

“I do suspect that with the workload being shifted up to the knee and especially the hip, there may be an increase in injuries in those areas. The hip still has to work harder being on a softer, less stable surface. So, those with hip instability and strength issues may want to avoid super shoes, at least until these issues have been addressed,” Klein says. New runners should focus on building strength and experience before experimenting with super trainers.

There is little doubt that these shoes have effects at the point where our feet meet the midsoles as well as farther along our kinetic chains. Super trainers shift more of the workload of running to the hamstrings, which means that you won’t engage the calves and lower leg muscles as much. Moving some of that effort to larger muscle groups can be beneficial for some runners, like those who are struggling with calf or Achilles tendon injuries. But those who have a nagging hamstring strain may need to be wary. Whether or not it’s your goal, those upper leg muscles will receive more of a workout.

At the very least, one thing can be said for sure. It’s that all the foam underfoot is going to put a lot of distance between your foot and the ground. This limits the amount of ground feel you receive from the shoe. It can be easier to wipe out if you’re hopping a curb on a night run. And on rain-slicked sidewalks or technical trails, it can be tough to steer a thick and bulky midsole. If you’re prone to ankle rolls or need a keen sense of where and how your foot is landing whenever you touch down, a super trainer might not serve you well.

Will I Really Get DQ’d in a Race?

It depends. If you’re an elite runner, absolutely. But if you’re going for a 3:10 BQ, it’s unlikely. Ethiopian runner Derara Hurisa won the 2021 Vienna Marathon in 2:09:22 but was disqualified when race organizers found he’d raced in the Adidas Adizero Prime X, a different shoe than he’d declared on his prerace form. Another runner at a fall 2023 half marathon was disqualified after winning in the same shoe. 

Our Favorite Super Trainers

Running shoes aren’t cheap. Maxed-out midsoles with top-end shoe tech only add to the bill. Most super trainers will cost you $180 at least, and there are options to be had for well over $200.

Ethiopia’s Fotyеn Tesfay Haylu delivered one of the most remarkable women’s half-marathon performances ever seen on American soil on Sunday, powering to a commanding victory at the 2026 Buenos Aires Half Marathon in Argentina in 1:03:57.

Running with exceptional confidence and strength, Tesfay took control of the race and produced a superb solo performance to rewrite the event record. Her breathtaking run also carried historic significance, as she became the first woman to break the 64-minute barrier for the half marathon in the Americas, producing what is being celebrated as the fastest women’s half-marathon performance ever recorded on the continent.

The Ethiopian star was in a class of her own, crossing the finish line more than a minute clear of Turkey’s Nevin Can, who finished second in 1:05:06. Another Turkish athlete, Selin Can, completed the podium in third place with 1:05:11, as the leading trio all produced strong performances on the fast streets of Buenos Aires.

Kenya also featured prominently in the top positions, with Irene Jepchumba Kimais taking fourth in 1:06:04, followed by Sheila Chepkirui in fifth with 1:06:13. Magaret Akidor Ngathike finished sixth in 1:06:46, while fellow Kenyan Deborah Samum claimed seventh place in 1:08:32.

Brazil’s Nubia de Oliveira Silva was eighth in 1:11:13, while Argentina’s Sofia Luna and Dahyana Juarez rounded out the top 10 with times of 1:11:21 and 1:11:28, respectively.

Top 10 Women – 2026 Buenos Aires Half Marathon

1. Fotyеn Tesfay Haylu (Ethiopia) – 1:03:57

2. Nevin Can (Turkey) – 1:05:06

3. Selin Can (Turkey) – 1:05:11

4. Irene Jepchumba Kimais (Kenya) – 1:06:04

5. Sheila Chepkirui (Kenya) – 1:06:13

6. Magaret Akidor Ngathike (Kenya) – 1:06:46

7. Deborah Samum (Kenya) – 1:08:32

8. Nubia de Oliveira Silva (Brazil) – 1:11:13

9. Sofia Luna (Argentina) – 1:11:21

10. Dahyana Juarez (Argentina) – 1:11:28

For Tesfay, it was far more than a race victory. Her 1:03:57 performance was a statement of extraordinary quality, combining speed, endurance and remarkable solo running to produce a landmark result in Buenos Aires. In a race that will be remembered for years to come, the Ethiopian did not simply win—she redefined what was thought possible for women’s half-marathon running in the Americas.

Ethiopia’s Yomif Kejelcha produced one of the most extraordinary performances in road racing history on the streets of Buenos Aires, Argentina, reclaiming the half marathon world record with a sensational 56:51 performance at the 2026 Buenos Aires Half Marathon.

The former world record-holder delivered a breathtaking exhibition of speed and endurance to take 29 seconds off the previous pending mark of 57:20, set by Uganda’s Jacob Kiplimo and takes a huge chunk from his own former official world record. Kejelcha's new performance is pending the standard ratification procedures, but if officially ratified, it will return the world record to the Ethiopian star and mark another remarkable chapter in the evolution of the event. 

Kejelcha's achievement is particularly significant because the 57-minute barrier had already been broken before. Jacob Kiplimo had previously run under 57 minutes, clocking 56:42 that was not ratified demonstrating that the once-unthinkable barrier was possible. Kejelcha, however, has become the second man to run under 57-minute barrier who now returns to the top of the all-time rankings with another historic performance in Buenos Aires.

The Ethiopian's race was remarkable not only for the final time but also for the way he built his performance. He covered the opening five kilometres in 13:44 before reaching 10km in 27:18. Rather than slowing, Kejelcha accelerated through the middle stages, passing 15km in 40:39 and 20km in 54:02 as he continued to push the limits of elite road racing.

By the time he reached the finish line, Kejelcha had completed the race at an extraordinary average pace of approximately 2:42 per kilometre, producing one of the most astonishing sustained efforts ever witnessed in distance running. His stunning run sent a powerful message to the athletics world and further strengthened his status as one of the most formidable distance runners of his generation.

Behind the record-breaking champion, Ethiopia completed a dominant clean sweep of the men's podium. Tadese Worku Gebresilase claimed second place in 59:18, while Bereket Nega Batebo secured third in 1:00:17, giving Ethiopia a memorable one-two-three finish in the Argentine capital.

Kenya’s Jonathan Kipkoech Kamosong finished fourth in 1:00:20, followed by compatriot Simon Maywa in fifth with 1:00:55. Argentina’s Ignacio Erario gave the home supporters plenty to celebrate with an impressive sixth-place finish in 1:00:57, breaking the one-hour barrier in front of an enthusiastic local crowd.

Dillon Kipyeko of Kenya finished seventh in 1:01:07, with Robert Kiprop Koech eighth in 1:02:01. Mexico’s Julio Ortiz Ponce took ninth place in 1:03:17, while Colombia’s Jimmy Gómez completed the top 10 in 1:03:34.

The Buenos Aires Half Marathon will now take its place in the history books as the scene of a truly extraordinary breakthrough. For Kejelcha, this was more than just another victory. It was a spectacular return to the top, reclaiming a world record he had previously held and once again rewriting the limits of the half marathon.

The 56:51 performance remains pending ratification, but Yomif Kejelcha's run has already delivered one of the defining moments in the history of road racing.

Kenya delivered another commanding display of distance-running excellence at the Antrim Coast Half Marathon, with Isaia Lasoi leading a memorable Kenyan clean sweep of the men's podium in a race packed with world-class performances.

Lasoi emerged victorious after a thrilling battle at the front, crossing the finish line in a superb 58:26 setting a new course record. His winning performance underlined his strength and speed over the half-marathon distance, but he was made to work all the way by fellow Kenyan Daniel Mateiko, who finished just three seconds behind in 58:29 after an electrifying duel for the title.

The contest between the two leaders produced one of the standout moments of the race, with both athletes pushing deep into elite territory as they fought for victory. In the end, Lasoi found just enough to secure the win, while Mateiko's narrow defeat highlighted the remarkable depth and quality of Kenya's leading distance runners.

Vincent Kipkorir completed the Kenyan sweep, taking third place in 1:00:38 to ensure that all three places on the podium belonged to Kenyan athletes. Samwel Chebolei added further Kenyan strength to the results, finishing fourth in 1:01:01, while Amos Langat was also among the leading finishers.

The international field featured several prominent names. Australia's Jimmy Whelan produced a strong run, while Ethiopia's Yismaw Dillu featured among the front group. American marathon star Galen Rupp also delivered a notable performance, clocking 1:01:29 in another competitive outing for the experienced distance runner. Former world-class track and road athlete Edward Cheserek was also among the top finishers.

Lasoi's 58:26 victory, however, was the defining performance of the day. Together with Mateiko and Kipkorir, he gave Kenya a perfect podium and another emphatic reminder of the country's extraordinary strength in elite road running.

The Antrim Coast Half Marathon once again provided a fast, competitive stage for some of the world's finest distance runners, but when the decisive moments arrived, it was Kenya that owned the podium.

One of the most iconic milestones in the history of ultramarathon running is drawing closer, with entries for the historic 100th edition of the Comrades Marathon set to open on Tuesday, 25 August 2026.

The Comrades Marathon Association has officially announced a detailed entry process for the 2027 race, which will unfold in three stages and give runners around the world the opportunity to secure their place in what promises to be one of the most significant editions ever held of The Ultimate Human Race.

The announcement followed the official launch of the 2027 Comrades Marathon on Wednesday, 19 August, when the centenary campaign, “The Greatest Story Ever Run,” was unveiled alongside a special logo created exclusively for the landmark 100th edition.

The launch also revealed several major highlights for the Centenary Race. The historic event will take place on Sunday, 13 June 2027, and will be a Down Run, with 28,000 places available. The entry process will include a ballot, while the race will offer a record R8.919 million in prize money. Organisers have also set an ambitious goal of raising R10 million for the Amabeadibeadi charities, adding an important charitable dimension to the centenary celebrations. One of the defining moments of the launch was the unveiling of the special Centenary mark, created to commemorate this extraordinary milestone in the history of the race.

The entry process begins on 25 August at 10:00 a.m. SAST, when entries open for Green Number runners, Yellow Number runners and Amabeadibeadi charity entrants.

The next phase follows on 2 September at 10:00 a.m. SAST, when entries open for Comrades Marathon Association members. This window will remain open for 72 hours or until the available entry allocation is filled, with places offered on a strictly first-come, first-served basis.

For general entrants, the process will move to a ballot system. General entries open on 9 September at 10:00 a.m. SAST, with runners able to enter the ballot until it closes on 22 September at 4:30 p.m. SAST. The ballot draw is then scheduled to take place on 23 September.

Several other crucial dates will shape the road to the historic race. The substitution period will run from 15 to 31 March 2027, while 3 May 2027 is the final deadline for runners to submit their qualifying performances, seeding information and other required entry details.

To qualify for the 2027 Comrades Marathon, runners must complete a 42.2km marathon in under five hours between 15 June 2026 and 3 May 2027.

The journey will finally culminate on Sunday, 13 June 2027, when thousands of runners are expected to line up for the historic 100th edition of the Comrades Marathon.

The 2027 race will represent a remarkable moment for the legendary South African ultramarathon. For more than a century, the Comrades Marathon has captured the imagination of runners and spectators with its extraordinary test of endurance, determination and human spirit. Its centenary edition will celebrate the generations of athletes who have faced its demanding roads, conquered its challenges and helped build one of the world's most respected endurance events.

For runners dreaming of becoming part of this historic occasion, the road to Comrades 2027 is now clearly marked. From the opening of entries in August 2026 to race day in June 2027, every deadline will matter.

The Greatest Story Ever Run is preparing for its most historic chapter yet.

American sprint standout Sam Blaskowski is taking steps toward an international future with Poland after uncovering a powerful connection to his family's ancestral homeland.

The 23-year-old sprinter, who has established himself as one of the fastest Americans of his generation with a personal best of 9.89 seconds in the 100 metres, has begun the process of obtaining Polish citizenship with the aim of eventually representing Poland in international competition.

Blaskowski's connection to the country traces back through his great-grandparents, Franciszek and Julian Błaszkowski, who emigrated from Poland to the United States in 1905. Their journey more than a century ago has now opened an unexpected new chapter for their descendant, whose athletic ambitions could soon carry the Błaszkowski name back onto the international stage under Polish colours.

The sprinter has already received support from the Polish Athletics Association as he works through the citizenship and eligibility process. Should his transfer of allegiance be completed, Blaskowski could become a significant addition to Poland's sprint programme.

His credentials certainly make the prospect an exciting one. In addition to his sub-10-second speed over 100 metres, Blaskowski owns a personal best of 19.93 seconds in the 200 metres, demonstrating the kind of versatility that could prove valuable both individually and in Poland's 4x100m relay squad.

For Blaskowski, however, the move is about more than simply changing national colours. It represents an opportunity to reconnect with his family's heritage while pursuing his ambitions at the highest level of the sport.

With his sights set on becoming part of Poland's international sprint team and competing for relay medals, Blaskowski's journey from discovering his Polish roots to potentially representing the country of his ancestors could become one of the most fascinating allegiance stories in world athletics.

A century after Franciszek and Julian Błaszkowski left Poland for America, their family's story may now be coming full circle—this time at full sprint.