The IRONMAN World Championship in Kona: Its History, What to Watch in 2026, and Why Kona Is Worth Chasing
On February 18, 1978, fifteen athletes started a race on Oahu that came with a short set of instructions: "Swim 2.4 miles! Bike 112 miles! Run 26.2 miles! Brag for the rest of your life!" Twelve of them finished.
On Saturday, October 10, nearly 3,000 athletes will start the 2026 IRONMAN World Championship in Kona, in Kailua Bay on the Big Island of Hawaii. For the first time since 2019, the professional men and women race Kona on the same day, and NVDM athletes will be on that start line with them. Here is how the race grew from a small competition into the sport's world championship, what to watch on Saturday, and why a Kona goal is worth building a few seasons around.
How the IRONMAN World Championship Began
Oahu, 1978
The idea came out of an argument at the awards night for the 1977 Oahu Perimeter Relay, where the table could not agree on which endurance athletes were the fittest. Navy Commander John Collins and his wife, Judy, proposed settling it by linking three events that already existed on the island: the Waikiki Roughwater Swim, the Around-Oahu Bike Race and the Honolulu Marathon. That is where the distances come from. The bike route was trimmed slightly so riders would finish at the marathon start, and 2.4, 112 and 26.2 have defined the full distance ever since.
Gordon Haller, a Navy communications specialist, won that first race in just under 11 hours and 47 minutes.
From a magazine story to the Big Island
The 1979 race drew a small field again. Tom Warren won in 11:15:56, and Lyn Lemaire became the first woman to finish, in 12:55:38. The difference that year was a reporter: Sports Illustrated's Barry McDermott wrote a long feature on the race, published May 14, 1979, and over the following year hundreds of athletes began making plans to come to Hawaii. ABC's Wide World of Sports televised the 1980 race, which had 108 starters and was won by Dave Scott in 9:24:33.
The field had grown past what Oahu's busy roads could host. Valerie Silk, who took over running the event after the 1980 race, moved it to Kailua-Kona on the Big Island, where she could close roads and set up full aid stations. The first Kona edition was held on February 14, 1981.
The finishes people still talk about
On February 6, 1982, Julie Moss led late in the marathon, collapsed within sight of the finish on Aliʻi Drive, and crawled the final stretch. Kathleen McCartney passed her and won by 29 seconds, 11:09:40 to 11:10:09. ABC broadcast the finish, and a national audience saw what the last mile of an IRONMAN can ask of a person. Later that year the race was held again in October, a better fit for athletes training through a Northern Hemisphere summer, and October became its home.
On October 14, 1989, Mark Allen and Dave Scott raced the day that came to be called the Iron War. Allen won in 8:09:15, 58 seconds ahead of Scott, and his 2:40:04 marathon stood as the race's run record for 27 years. It was Allen's first Kona title, and the race has its own book: Matt Fitzgerald's Iron War.
The champions and the records
Athlete | World titles | Years |
Paula Newby-Fraser | 8 | 1986, 1988, 1989, 1991–94, 1996 |
Dave Scott | 6 | 1980, 1982 (Oct.), 1983, 1984, 1986, 1987 |
Mark Allen | 6 | 1989–93, 1995 |
Natascha Badmann | 6 | 1998, 2000–02, 2004, 2005 |
Daniela Ryf | 5 | 2015–18, and the 2021 championship held in St. George |
Chrissie Wellington | 4 | 2007–09, 2011 |
Jan Frodeno | 3 | 2015, 2016, 2019 |
Patrick Lange | 3 | 2017, 2018, 2024 |
The current Kona course records are recent. Lucy Charles-Barclay set the women's mark of 8:24:31 in 2023, and Patrick Lange set the men's mark of 7:35:53 in 2024.
The split years and the return to one day
There was no championship in 2020. The 2021 edition was held on May 7, 2022, in St. George, Utah, the first time the title was decided outside Hawaii. Kona hosted a two-day race in October 2022, and from 2023 through 2025 the championship was split between Kona and Nice, France, with the women racing in Kona in 2023 and 2025 and the men in 2024. On April 30, 2025, IRONMAN announced that from 2026 the men and women would race together in Kona on a single day. CEO Scott DeRue put the reasoning simply: athletes wanted "to race together, and do that at the beating heart of our sport in Kona."
Athlete Takeaway: Pick one piece of Kona history to read or watch before Saturday — Fitzgerald's Iron War covers 1989 in full. The race is more fun to follow when you know what the Queen K and Aliʻi Drive have already seen.
The 2026 IRONMAN World Championship: What's Different This Year
This is the first single-day Kona with both professional fields since 2019, and the field is large: nearly 3,000 athletes, compared with a women-only field of just over 1,600 in 2025.
The published schedule sends the professional men off first at about 6:20 a.m. Hawaii time, with the professional women about ten minutes behind. Age-group waves follow, grouped by age, with the last wave starting around 7:45 a.m. That spread matters if you are following friends or teammates: an athlete in a late wave will reach T2 well after the pro race looks settled.
We are proud to have NVDM athletes racing on Saturday, including Coach Parker Kerth, and we will be following every split.
Athlete Takeaway: If you know someone racing, look up their start wave before Saturday. With waves running until about 7:45 a.m., their day unfolds well behind the pro race, so set your expectations for their splits accordingly.
What to Watch on the Kona Course
The swim: Kailua Bay
The swim is 2.4 miles in the ocean off the Kailua Pier. The water in Kailua Bay averages around 80°F, which makes Kona a non-wetsuit swim. Swim splits here tend to run slower than the same athletes post at wetsuit races, which is worth remembering if you compare a friend's Kona time with their home race.
The bike: the Queen K and Hawi
The 112-mile ride runs north on the Queen Kaʻahumanu Highway through the lava fields, past the Port of Kawaihae around mile 55, and climbs to the turnaround in Hawi, the high point of the course at about 623 feet. The wind is the feature to watch. Around Hawi, roughly miles 55 to 65, sustained winds of 20 mph or more with gusts above 30 are common, and they usually build after about 10 a.m. Hawaiian has its own word for the strong wind at Kawaihae: mumuku.
The riders who look calm on the return from Hawi are usually the ones who paced the first half with patience and stayed low and relaxed in the crosswinds. Our guides to pacing the IRONMAN bike by power and riding a TT bike in the wind cover both skills in detail.
The run: Aliʻi Drive and the Energy Lab
The marathon starts with an out-and-back along Aliʻi Drive, climbs Palani Road to the Queen K, and heads out to the Natural Energy Lab of Hawaii Authority, known simply as the Energy Lab, before returning to the finish on Aliʻi Drive. Heat and humidity shape this part of the day. At the 2025 women's race it was 82°F with humidity above 70%, and two of the leading contenders did not finish.
Watch how the leaders move through the aid stations: ice, water and sponges at every one, and a pace that stays steady rather than surging. That is heat management done well, and the same approach works at any hot race. We cover the details in adjusting your pace for heat and humidity and in our heat acclimatization protocols.
The Pro Races: Who to Watch and How to Watch
The women
Solveig Løvseth of Norway returns as the defending champion. She won in Kona last year in 8:28:27, just 35 seconds ahead of Kat Matthews, four months after her IRONMAN debut. Matthews is back, as is Germany's Laura Philipp, the 2024 champion, and the IRONMAN Pro Series title is also in play between Løvseth and Philipp. Lucy Charles-Barclay, the 2023 champion and course-record holder, skipped the 70.3 World Championship in Nice to focus on this race. American Chelsea Sodaro, who won in 2022 as the first American woman to take the title since 1996, is also on the start list.
The men
The men's race will have a new champion. Casper Stornes, who won the 2025 title in Nice, withdrew after a training crash on the Big Island on September 24, and we wish him a full recovery. That leaves a deep field led by three Norwegians and two former Kona winners: Gustav Iden, the 2022 champion; Kristian Blummenfelt, who won the 2021 championship in St. George; and Sam Laidlow of France, the 2023 champion. Patrick Lange, the last man to win in Kona and the course-record holder, is reported to be racing his final Kona. Denmark's Magnus Ditlev and American Rudy Von Berg, second and third behind Lange in 2024, are both on the start list.
How to watch
The race streams live on IRONMAN's YouTube channel, on DAZN and on the IRONMAN Pro Series website, with a highlights show on Outside TV in the U.S. and Canada. The professional men start at about 6:20 a.m. Hawaii time, which is 12:20 p.m. Eastern and 11:20 a.m. Central. If the winners race close to recent times, expect the men to finish around 8 p.m. Eastern and the women around 9 p.m., with the age-group finish line busy late into the Hawaii night.
Athlete Takeaway: Set a reminder for 12:20 p.m. Eastern on Saturday and plan to check in at three points: the swim exit, the turn at Hawi, and the Energy Lab. Those three moments tell the story of the day.
Why Chasing Kona Is a Worthy Goal
A Kona goal changes how you train for a few years, and almost every change is one that makes you a better athlete at any distance. It asks for consistent weeks rather than heroic ones, a bike you can pace, a run that holds up in the heat, and fueling you have rehearsed until it is automatic. Those are the same skills that bring personal bests at your local 70.3.
How athletes qualify now
Each qualifying race gives a slot to every age-group winner, and the remaining slots go to athletes ranked by age-graded time within separate men's and women's pools. IRONMAN split those pools by gender in November 2025, after the first third of the qualifying season sent about 96% of performance-pool slots to men, and it awarded additional slots to women retroactively. In practice, that means a strong performance relative to your age group can earn a slot even if you finish second or fifth in your category on race day. We walk through the season-planning side of it in building your season around Kona qualification, and the debate around the system in IRONMAN's new Kona rules.
There are other routes, too. IRONMAN's Legacy program rewards athletes who have finished a dozen full-distance IRONMAN races over the years, and the IRONMAN Foundation offers charity entries for the 2027 championship to age-group athletes with a recent IRONMAN finish.
What it takes, stated plainly
For most athletes we coach, Kona is a multi-season project. It usually starts with a first full, like the step we describe in moving up from 70.3 to a full IRONMAN, then a season built around a qualifying race chosen for the right course and the right time of year.
The honest case for chasing it anyway is what the pursuit does for you. Athletes working toward Kona learn their own pacing, fueling and heat tolerance in detail. They race with more purpose and recover more deliberately. Whether or not the slot comes, they finish the pursuit fitter and more capable than they started. That is a good trade for a few years of focused work.
Athlete Takeaway: Write down the qualifying race you would target and the age-graded time it would take, then build next season backward from that date. Our guide to building your 2027 race schedule is the place to start.
The Bottom Line
Kona began as a bar-table argument on Oahu and grew into the sport's world championship. On Saturday it returns to a single day for both professional fields, with nearly 3,000 athletes, a Norwegian defending champion in the women's race, an open men's race, and the same heat and wind that have shaped the day since 1981.
Watch it with a coach's eye: the swim exit, the return from Hawi, the Energy Lab. And if some part of you wonders what it would take to be out there yourself, that question is worth answering properly. Set up a call with us now, and we will help you build the path to your best race day!
