Running News Daily

Here’s what experts say about the causes of that uncomfortable, tingling sensation and how to cope with it.

As a runner, you try to prepare for everything: You have a waterproof jacket for that 60 percent chance of rain, anti-blister socks, and a supply of gel packs for Saturday long runs. However, something that you may be less prepared for is relentless itching and tingling.

Known as “runner’s itch,” this sensation makes hitting the road uncomfortable for many runners, especially those just starting out or getting back into a running routine. 

“Runner’s itch wasn’t something that was particularly researched and documented before the 1950s, but it’s been consistently described in literature in some way since about the 70s,” says Braden Romer, Ph.D., an associate professor of exercise science at High Point University in High Point, North Carolina. “We’ve seen the prevalence go up as there are more individuals taking part in physical activity. I run into it quite often when dealing with athletes.” 

If you want to run more but can’t stand the urge to stop and scratch, here’s what to know about runner’s itch and how to soothe it.

What causes runner’s itch?

The causes of runner’s itch may range from minor inconveniences to more serious health conditions. Although more research is needed to fully understand what triggers this sensation, here are five potential causes. 

1. Dry or Irritated Skin

Both humidity and dryness in the air can lead to runner’s itch. 

“If you sweat a lot or if it’s very humid or raining, and your clothes get wet, you run the risk of skin irritation or itchiness,” says Melissa Kendter, C.P.T., a Philadelphia-based United Endurance Sports Coaching Academy (UESCA) running coach. 

Meanwhile, another common cause is dry air and dry skin. Friction from running can exacerbate this and cause unpleasant itching.

“Some research has suggested hydration is a factor as well,” says Romer. “If you’re not drinking enough water, your skin gets dry and itches. When you begin to workout, especially with workout clothes, that may trigger an effect as well.”

Running can also exacerbate eczema, a group of inflammatory skin conditions that lead to issues like itchiness and dry skin. 

“If you’re prone to eczema, exercise might make it worse,” says Minneapolis-based William Roberts, M.D. chief medical officer of the American College of Sports Medicine and former director of the sports medicine program at the University of Minnesota Medical School. “If you notice a skin rash, talk to your doctor.”

2. Histamine Release

A predominant theory behind runner’s itch is a histamine release at the onset of exercise, says Romer. Aerobic or endurance exercise can generate a localized anaphylactic reaction within the exercised muscle tissue, which causes histamine release, per a 2017 study in Exercise and Sport Sciences Reviews. 

“There’s some research to suggest that the itching may be related to histamine release at the onset of exercise, particularly in high-intensity exercise,” Romer explains. “If somebody hasn’t been working out or running, or they haven’t warmed up and jump right into a high-intensity workout, that may be triggering a greater histamine release from within the muscle cells.”

This histamine release, in turn, could cause that uncomfortable and itchy feeling. 

2. Blood Vessel Expansion

When you run, blood flow increases to your tissues, causing vasodilation (the widening of blood vessels). One theory is that the increased size of your capillaries causes an itching sensation.

“The capillaries start to expand, which may send a triggering response to some of the nerve fibers around that area,” says Romer. You may be more prone to this if you haven’t run for a while or are just starting out.

“This typically can happen for newer runners or ones getting back into the routine of running, because their bodies aren’t adept at this process,” says Kendter. “If your fitness routine has been put on the back burner for some time, you have a higher risk.”

However, this theory does have its skeptics. Romer adds that there are multiple pathways that have been proposed for runner’s itch and the symptom is not well understood. This was evident even in the differing opinions among the experts we spoke to—Roberts, for instance, has doubts that vasodilation could cause itching.

The bottom line: Though runner’s itch could potentially be related to blood flow, more research is needed to fully understand the mechanisms behind this process.

4. Exercise-Induced Urticaria

In more rare cases, allergic responses to exercise can cause severe symptoms. Exercise-induced urticaria is a rare clinical condition that causes flushing, itchiness, and hives after a workout, per a March 2022 single case study in Cureus. A minority of patients can even develop anaphylaxis, which is a severe, life-threatening allergic reaction. 

“Exercise-induced anaphylaxis can cause a fast heart rate and potentially the swelling of the throat and blocking of the airways,” says Roberts.

About 30 to 50 percent of exercise-induced anaphylaxis is food dependent, meaning it only occurs with the combination of a specific food and exercise, per another single case study, published in 2017 in Canadian Family Physician. 

Many different types of food have been found to have a triggering effect, including wheat, shellfish, nuts, tomatoes, peanuts, fish, pork, beef, mushrooms, hazelnuts, eggs, peaches, apples, milk, and alcohol.

If you suspect you’re experiencing urticaria, it’s important to see your physician to start a treatment program. This could include taking antihistamines before you run and carrying an EpiPen with you. If you do experience allergic reactions, it’s best to run with a buddy who knows how to help if you have a reaction. 

People with severe cases of exercise-induced urticaria may need to avoid certain types of exercise and foods (or, rarely, exercise altogether). 

5. Cholinergic Urticaria

Another condition that could be the cause of itching is cholinergic urticaria, which is characterized by itching and/or a stinging pain, redness, and bumps. 

Think of this as a heat-triggered reaction: Symptoms develop after an increased body temperature has been stimulated repeatedly, such as through exercise, per a 2023 review in the American Journal of Clinical Dermatology.

“This is also pretty rare,” says Roberts. “It’s a response to the skin warming that occurs with running.” 

Cholinergic urticaria is often associated with serious symptoms like anaphylaxis and severe pain. This condition comes on very quickly and may also involve an antihistamine treatment plan. Your doctor may conduct testing to confirm that you’re experiencing cholinergic urticaria, which may involve raising the body temperature through exercise on a treadmill or stationary bike. 

Who’s most prone to runner’s itch?

When it comes to everyday runner’s itch that’s not related to a more serious medical condition like exercise-induced urticaria or cholinergic urticaria, runners who are just starting out or who haven’t exercised in a while may be more likely to experience it. 

“I’ve seen this with athletes who have taken time off,” says Romer. “My wife also struggles with runner’s itch quite a bit. If she takes some time off from high-intensity runs for a bit, especially in the winter, it really gets after her for the first few workouts.” 

If the itching is due to dry skin, factors like age, climate (think desert-like climates with low humidity or cold climates with heavy wind), genetics, or health conditions like eczema or diabetes can play a role, per the Cleveland Clinic. You may also experience more dry, itchy skin during the winter or if you’re not drinking enough water. 

How can you sooth runner’s itch?

For many people, runner’s itch will fade away with regular exercise, unless it’s a symptom of a more serious condition. “It generally subsides relatively quickly after several workout sessions or modifying hydration intake,” says Romer. 

You can also aim to soothe runner’s itch by properly easing into your run.“Do a good warmup so your body has a gradual increase in temperature and the blood gets flowing to the muscles in advance, rather than a rapid increase,” says Kendter.

Try to keep running throughout the year: Although the first couple of weeks may feel uncomfortable, if you stay consistent and allow your body to adapt to your routine, you’re less likely to experience the itch. 

Staying properly hydrated and using a moisturizer to soothe dry skin can also help. Roberts recommends moisturizing creams like Vanicream, which is available over the counter. 

All of this said, talk to your doctor if runner’s itch continues for you or if symptoms are severe—say, it’s accompanied by rash or hives, is extremely painful, or continues/worsens over time.

“If it becomes a chronic response, where you’re not seeing a diminished response even if you’ve been able to regularly exercise, see a physician,” says Romer. 

Jamaica’s Oblique Seville delivered another sensational statement at the Silesia Wanda Diamond League, storming to victory in a breathtaking men’s 100 metres and setting a new meeting record of 9.83 seconds that made sprinting history in Chorzów, Poland.

In one of the deepest and most extraordinary sprint races ever witnessed, Seville powered clear of a world-class field to take the win, with Kenneth Bednarek of the United States finishing second in 9.87 and fellow American Christian Coleman completing the podium in 9.93.

But Seville’s meeting-record victory was only one part of the remarkable story. For the first time in history, all nine athletes in a single men's 100m race broke the 10-second barrier, producing an unprecedented display of sprinting depth.

The historic race also marked only the second time that every athlete in a men's 100m final had broken 10 seconds, following the eight-man final at the Paris 2024 Olympic Games. In Silesia, however, the achievement went even further, with an entire nine-man field dipping below the iconic barrier.

Nigeria’s Kayinsola Ajayi produced another impressive performance to finish fourth in 9.94, while South Africa’s Gift Leotlela followed in fifth with 9.95. Canada’s Olympic champion Andre De Grasse clocked 9.96 in sixth, with South African star Akani Simbine recording the same time in seventh.

American Ronnie Baker added another sub-10-second performance with 9.97 for eighth place, while Cameroon’s Emmanuel Eseme ensured the historic sweep was complete by running 9.99 in ninth.

Men's 100m Results – Silesia Wanda Diamond League

1. Oblique Seville (Jamaica) — 9.83 Meeting Record

2. Kenneth Bednarek (United States) — 9.87

3. Christian Coleman (United States) — 9.93

4. Kayinsola Ajayi (Nigeria) — 9.94

5. Gift Leotlela (South Africa) — 9.95

6. Andre De Grasse (Canada) — 9.96

7. Akani Simbine (South Africa) — 9.96

8. Ronnie Baker (United States) — 9.97

9. Emmanuel Eseme (Cameroon) — 9.99

For Seville, the victory was another emphatic demonstration of his exceptional form and his ability to rise to the occasion against the strongest opposition. His 9.83 not only secured the Diamond League win but also lowered the Silesia meeting record, putting an exclamation mark on a performance of the highest quality.

Nine men went under 10 seconds. Seville went under 9.84. On an unforgettable day in Silesia, the Jamaican stood tallest in a race that pushed the boundaries of what men's sprinting has ever seen.

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.