Running News Daily

You felt fine a day after your long run—so why the heck are you slogging through your easy workout two days later?

Picture this scenario: You get through a tough workout on Sunday—whether it’s a tough round of 800-meter repeats or 16 miles at marathon pace—and, surprisingly, you feel fine afterwards. 

The next morning, you’re a little stiff, but nothing too serious. You take a day to rest, and then head back out on Tuesday for an easy run. 

Then, boom. Your legs feel like they’re made of lead, you’re sore all over, and what’s supposed to be an easy run feels like you’re wading through molasses. What the heck happened?!

This is what Cory Smith, running coach and founder of Run Your Personal Best, calls “second-day syndrome.” The official term is delayed onset muscle soreness, or DOMS, but he likes to use second-day syndrome because it nails home the point that the ailment often happens two days after a hard workout, which a lot of people don’t expect.

Before getting to the bottom of why DOMS happens, let’s start with simple definitions. The American College of Sports Medicine defines DOMS as, “A sore, aching, painful feeling in the muscles after unfamiliar and unaccustomed intense exercise.” Basically, whenever you lift weights, run a tough workout, go rock climbing, or do an activity beyond your current level of fitness, you’re creating tiny tears in muscle tissue. In response, your body releases chemicals, lipids, alongside white blood cells like cytokines, macrophages, and neutrophils to quickly repair those muscles. This flurry of activity in localized areas of the body also initiates an inflammatory response. The muscle tears, rebuilding process, and inflammation creates that soreness and stiffness DOMS is recognized for. 

“The soreness peaks anywhere from 24 to 48 hours after the initial stress, so it’s common for runners to feel fine the next morning and think they’re all good and recovered,” Smith says. “But then, on that second day, you might feel worse than you did yesterday.” This is because there’s a delay in delivery of blood flow to the muscle also called the “inflammatory cascade.” Think of muscle repair as a slow ramp-up process; sometimes it takes a few days to reach peak soreness. 

Though it can be painful, annoying, and hindering, DOMS shouldn’t last long-term. In fact, it won’t be a recurring sensation. 

“Eventually, through repeating the cycle of damaging and healing, you’ll grow stronger,” Smith says. “Your body is going to be accustomed to this stress and you’ll feel DOMS less and less.”

Depending on the severity of your workout and how often you repeat it, DOMS generally goes away in a few weeks. Your muscles heal, rebuild stronger, and eventually become accustomed to the intense exercise. Contrary to popular belief, just because that soreness goes away doesn’t mean you didn’t have a hard workout. Your body has just adapted and may require less recovery.

“If you’re not almost recovered from a normal workout on the third day, you probably went too hard,” Smith says. “Generally, it depends on the type of workout that you’re doing— some light temp work—you may only need a day in between and you’ll be recovered. Whereas if you’re doing hard 800s, you’ll probably need two full days to recover. For a long run at marathon pace, you might need three days.”

Since defining DOMS, research has traditionally been focused on muscle tissue damage. But a recent study published by the International Journal of Molecular Sciences has shown that connective tissue, like deep fascia, may be more involved than previously thought. Deep fascia is connective tissue surrounding muscles, and it facilitates movement between muscles and acts as a pathway for blood vessels. 

Authors of the study believe that they’ve found evidence that proves further research and effort needs to be focused on the fascia, rather than just muscle tissue. This also means that runners may want to pay more attention to their fascia, as it doesn’t respond to conventional static stretching, rather multiple planes of stretching and mobility. It’s less about stretching individual muscles, but lengthening the connections made by the fascia. 

There are several ways to target this connective tissue. One effective method is pedal during yoga: downward facing dog, the extended side angle pose, and the standing figure-four stretch. 

There’s no fix-all method to preventing DOMS, but recovery protocols may dictate how severe or sustained your soreness will be. Smith recommends static stretching no more than six minutes after your run. It’s important to get those muscles stretched as quickly as possible after a run so they don’t tighten up. Tight muscles can prevent cells from expanding and bringing blood flow to the muscles. You need fresh blood and oxygen delivered to the worked out muscles, as it carries away the lactic acid buildup there. A massage gun can produce the same results.

“Movement is key! My go-to for runners is walking for 20 to 30 minutes after a hard workout, but an easy spin or recovery swim will also work,” says physical therapist and running coach Amy Parkerson-Mitchell. 

The American Council on Exercise recommends drinking 7-10 ounces of water every 10-20 minutes during your run, and an additional 8 ounces within 30 minutes after. When you sweat, you lose water, which is important for oxygen delivery to the muscles. Plus, water acts as a sort of medium within the body to deliver nutrients like amino acids and electrolytes to damaged muscles. 

You might be inclined to reach for an ice pack when you’re recovering from a long run, but Parkerson-Mitchell says that heat is key. In a study comparing heat and cold therapies for recovery, researchers found that applying heat directly after a workout produced less muscle damage. Ice, on the other hand, is great for when you’re in the midst of DOMS, rather than before it happens, because it eases swelling and numbs pain. 

There are two types of heat therapy: dry heat in the form of heating pads, and moist heat in the form of steam towels or a hot bath. Both are effective, but the Orthopedic Institute of Pennsylvania says that moist heat works faster in changing the muscles temperature. 

Amy Parkerson-Mitchell says warming up and cooling down is more important than people think, and skipping these steps can increase the time required for recovery from DOMS. Dynamic mobility exercises like walking high-kicks, knee-to-chest, and walking lunges are good for cold muscles prior to a run because you’re moving your joints through their full range of motion. One of the biggest mistakes you can make with DOMS is going too fast too soon after a hard workout. 

“This is why, with my clients, we do two hard workouts a week,” Smith says. “Typically, I give two days for runners to recover from a difficult run. If you do too much too soon, that’s when you lead into stagnant performance and overtraining.” 

But the too-often overlooked component of DOMS is the negative implications it has on your mindset. You might feel discouraged by how tough a run feels when you experience DOMS, especially after conquering a longer, tougher workout just a few days prior. Don’t fret or feel like you’re losing progress—remember that what you’re experiencing is completely normal, and something you can minimize for a sustainable, long-term running life. 

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.