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acing at long distance running events is common in North America, but it can also be intimidating. Here are seven essential tips from veteran ultra athletes. Emily’s stomach had definitely gone south. She couldn’t keep anything down, vomiting every few steps. Her pacer Buzz Burrell, a fixture in the ultra scene, had encouraged various forms of nutrition and drink with a side of optimism—it’s just a rough patch, aid station’s in a half-mile, the sun will be up soon. After all, that was his job, right? To lend the moral, emotional, and logistical support Emily needed to get to the finish line.

But when the hurling continued, he got out a flashlight and inspected the latest effluent. “It was blackish red, like a stomach lining,” he noticed. “And that’s when I said to my runner: ‘You know, I don’t think we ought to do this.’”

While that scene might be uncommon, it’s an example of the dire scenarios a pacer might encounter during an ultra-distance race. A pacer may need to be prepared to play all sorts of roles in service of helping a runner achieve their goals, even if it means knowing when to call it quits. They can be cheerleaders, drill sergeants, nutritionists, aide-de-camps, trail doctors, raconteurs, and comedians. It’s an art, one that requires close communication between pacer and runner.

While pacing is uncommon in European ultras (it’s not permitted in UTMB races, for example), it is a frequent feature in the U.S. Both on the track and in marathons, pacers are in from the start and step off somewhere halfway, but those who are pacing an ultra usually pick up their runner after the halfway point and accompany them for some or all of the last part of the race.

Some purists argue that the psychological advantage of having clear-thinking, uplifting company in the later stages contravenes the spirit of the endeavor, while others find it a way for friends or family to share in what might otherwise be a time-consuming and self-centered undertaking.

The practice of pacing originated as a safety precaution—race directors didn’t want runners to get lost or collapse out on the trail alone. The 345 percent increase in participation in ultras over the last twelve years guarantees that, while some runners are very experienced, there’s also an influx of neophytes who could benefit from the company of a pacer. And yet, at the same time, there’s a contingent who have never worn a pacer bib.

For those new to pacing, or some of us who have been thrown into the fire to pace a friend without any guidance, here are seven essential insights on the art of pacing from a few of the sport’s veteran pacers. Unsurprisingly, these three pacing pros are also experienced ultrarunners. In fact, it’s been suggested that pacing is an excellent way to learn the tricks of the trade before signing up as a competitor.

After interviewing these three experts, several themes emerged on what to expect when pacing a runner, and how to prepare and execute on your responsibilities:

Buzz Burrell: “You might be trudging along while your runner is throwing up, but I put a different spin on it. As a pacer, I’ve skipped the first 50 miles of the race, which means I’m feeling good, walking into aid stations, eating sandwiches. I haven’t paid a thing for this race! As a pacer, I can enjoy the beauty of the course. This runner might be a dear friend of mine, and I want to help him, but I’m also a free food kind of guy.”

Justin Grunewald: “I think the most common reason is to help someone you care about conquer their demons, and get from point A to point Z. For me, Tyler [Green] is a friend, but he’s also hugely accomplished. I learned so much from him by pacing, I think I could take 30 to 60 minutes off my time from what I learned from pacing.”

Nicole Bitter: “To be a part of a loved one’s attempt at achieving a goal, that’s almost better than if I did it myself. Some people can’t run 100 miles or don’t want to—pacing is a way to share in the experience. A lot of people find fulfillment in pacing, maybe more so than racing.”

BB: “This is critical. It’s not just two friends saying ‘Let’s go for a run together.’ First, discuss goals. Talk about possible scenarios.”

JG: “We talked about Tyler’s objectives. He’d finished second and fourth at States in past years and was completely overlooked as a top finisher this year, so he really wanted to go for it. He had dropped his pacer before, so he wanted someone who could go 32-33 miles. We talked about his intricate cooling routine and how it was going to go at aid stations.”

NB: “It’s critical to understand your runner and what makes them tick. I love to talk when I have a pacer. I want them to tell me funny stories, what happened earlier in the day. Some people don’t want to talk; they’re just in the zone.”

BB: “Be well-fed and well-hydrated, and know when your start time will be. Never become part of the problem; don’t be a liability. Know the pacer rules, like no physical assistance. Usually “muling”—carrying your runner’s food or gear—is not allowed, though it is at Leadville, so be aware of the rules. Know the course, the aid stations, and cut-off times.”

JG: “At Western States, cooling is 15 percent of the race, so everything had to go right at aid stations. Typically, about a half-mile out from an aid station, I’d ask what he wanted to drink. I’d get Coke, ice cubes, water in one bottle, Tailwind in the other.”

NB: “Make sure you and your runner are a good fit, that you’d want to spend some time with this person. Be confident you can cover the distance you’ll be pacing easily. Take care of yourself or you won’t be equipped to pace.”

BB: “It’s unlikely your runner will be feeling great. They may be sick. They may be on a bummer. It might be hot or stormy. I tell first-timers: ‘You feel bad. So does everybody else. This is what it looks like.’”

JG: “They might be too mentally fatigued to know what they need. Tyler told me his arms were numb, which told me he needed electrolytes. Hyponatremia and dehydration are really tricky to differentiate, but, in my experience, they almost always need more electrolytes.”

NB: “Expect the unexpected. You don’t know what could happen. You might not even get the chance to pace if your runner drops out. Keep a positive outlook, and be a problem-solver.”

BB: “The first-time runner needs stability, support, and mild encouragement. Remind them to start eating and drinking 45 minutes into it. Don’t wait until your stomach starts to go. The veteran probably knows this so you can get into actual pacing, behind or in front of them, moderating the ups and downs. For someone who just wants to finish, concentrate on putting one foot in front of the other.”

JG: “Normally, Tyler takes it out slower and picks people off, but this time the theme was ‘no regrets,’ so I reminded him of his objectives, of who he is, of how proud his family will be. He ran in front of me so I wouldn’t distort his view of rocks and roots.”

NB: “It’s nuanced. My husband is competitive so I usually talk about how we need to catch that runner in front of us. The hunt mentality. Or if we need to pick it up, I joke, ‘Wow, are you keeping up with me?’ Some races, like Western States, are dialed in to the tech, and can feed the pacer info on how far ahead or behind their runner is.”

BB: “‘It’ll be fine’ is our mantra, as long as it’s just a mental or emotional low. You can always come back from that. I’ve had runners say, ‘I’m out. I can’t do this.’ I have them sit down, take some deep breaths, let their heart rate come down. Heck, you can take 30 minutes at an aid station, change your socks, and march back out.”

JG: “I told him [Tyler Green] he was looking great. He hit a rough patch, so we focused on hiking 10 steps, running 10 steps. Relentless forward progress. I’d tell him things like, ‘In 800 meters there’s a downhill.’ Late in the race, no one wants to eat, so I kept thinking of what’s going to sound good, to get in some calories.”

NB: “My husband is usually in the zone, not talking, but he enjoys when I tell him stories and point out nice views.”

BB: “Personally, I’m always going to protect my runner’s health first. Finishing is second. There are thousands of stories of people getting through awful circumstances, but I’m not going to encourage them to go on if I think it’s damaging to their health.”

NB: “In the 2016 Western States, my pacer called my day. I had hyponatremia and we didn’t feel it was safe. It’s good to have a close friend make those tough calls.”

Being a good pacer is perfect training for becoming an accomplished ultrarunner. All of our expert pacers routinely switched roles in their many years in the sport. And for those new to the sport, pacing is a great way to dip your toes before actually signing up for a long-distance race. Regardless of whether you ever intend to go the full distance or not, the many roles of the pacer make for a rich, fulfilling experience.

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.