Top 10 IRONMAN Triathlons Worth the Trip in 2027

The IRONMAN World Championship in Kona is the race every triathlete dreams about, and for 2027 it is on October 9, 2027. IRONMAN calls Kailua-Kona the birthplace of the sport: the race began on Oahu in 1978 and moved to the Big Island in 1981. After the men's and women's races were split between Nice and Kona from 2023, both returned to Kailua-Kona in 2026, when Taylor Knibb and Vincent Luis won. The course is the original test. You start in the water in Kailua Bay for a 2.4-mile swim out and back, with small swells, then ride 112 miles from Kailua-Kona to the turnaround at Hawi and back on the Queen Ka'ahumanu Highway over exposed terrain with strong crosswinds. The 26.2-mile run goes along Ali'i Drive and out to the Natural Energy Laboratory. A 2019 course preview put the bike climbing at 5814 ft and the run at 1009 ft. It is hot: IRONMAN lists a high of 87 °F and an average water temperature of 79 °F. The course records are 7:35:53 for men, by Patrick Lange in 2024, and 8:24:31 for women, by Lucy Charles-Barclay in 2023. Entry is by qualification only. Amateurs earn a slot by finishing among the fastest in their age group at an IRONMAN race and must accept it in person at the rolldown ceremony.

DATEV Challenge Roth is the best full-distance race you can enter without qualifying, and the one with the best atmosphere. It is not an IRONMAN-branded race: Roth has hosted triathlon since 1984, has raced the full distance since 1990 and has been independent of IRONMAN's owner since 2002. The organizer calls it the biggest long-distance triathlon in the world and the Home of Triathlon, with around 3500 individual athletes, 650 relay teams and 7,500 volunteers. The 2027 race is on July 4, 2027. The swim is 3.86 km in the Rhine-Main-Danube Canal, about 10 km outside Roth, starting at 6.30 a.m. The 180 km bike is two laps, mostly flat apart from one tougher hill per lap, and the signature climb is Solar Hill. The run follows the canal and passes the market place in Roth and Büchenbach. It is fast. The long-distance course records were both set here: 7:21:04 by Sam Laidlow in 2026 and 8:02:35 by Anne Haug in 2024. Getting in is hard. Entry for 2027 opened with on-site registration on July 6, 2026 and online pre-registration on July 13, 2026, then a Late Entry Draw ran to November 9, 2026 at 10 euros per ticket; in 2025 that draw offered 700 individual and 35 relay places. Because it sits outside the IRONMAN system, it offers no Kona slots.

IRONMAN Frankfurt is the best IRONMAN-branded race in Europe and the European Championship for both professionals and age-group athletes. The 2027 race is on June 27, 2027, and general registration has already sold out. IRONMAN says Frankfurt draws the sport's biggest names more than any race outside the World Championship, and more than half a million spectators reportedly come each year to watch about 2,500 athletes. The swim is a two-lap 3.8km course at the Langener Waldsee lake, with a short Australian exit between laps. The bike is a two-loop, 180km rolling course through Frankfurt and the villages around it, and the run is a flat four-loop 42.2 km course along the River Main, with aid stations about every two kilometers and a finish at the historic Römerberg. The run was voted the 3rd Best IRONMAN Run Course in Europe, Middle East and Africa in 2025. Plan for heat. IRONMAN lists a high of 33 °C, and the 2026 race report was titled Stornes conquers the heat. The two transitions are at different venues, so you drop your run bag and check in your bike separately. The time limit was cut from 16 to 15 hours in 2010. It is a qualifier for the 2027 IRONMAN World Championship, with slots claimed in person at the rolldown. If you want championship-level competition with huge crowds, this is the race.

IRONMAN Lanzarote is the toughest race on this list and the oldest IRONMAN in Europe. The first edition was on May 30, 1992, founded by Danish amateur Kenneth Gasque, whom the island government honored with a life-size statue in 2024, and 2027 marks its 35th edition on May 15, 2027. Because of its lava landscape it is called the European Kona. The swim is a 3,800-meter, two-lap ocean swim at Playa Grande in Puerto del Carmen, with an Australian exit. The bike is the defining challenge: a single 180.2 km loop through Timanfaya National Park, La Geria and Mirador del Río, with 2,557 meters of elevation gain and northeasterly winds that are usually headwinds for much of the first 109 kilometres. There are five significant climbs before Mirador del Río. The run is three laps along the Avenida de Las Playas by the coast, passing the airport runway. Conditions are mild: IRONMAN lists a high of 25 °C and an average water temperature of 20 °C. One transition area at Playa Grande beach keeps bags, bikes, medical and the finish together. The general entry costs 860.86 EUR including fees and tax, registration is open, and it is a qualifier for the 2027 World Championship. Professional Lucy Charles-Barclay sums it up: if you want a real test, you have to do this IRONMAN.

IRONMAN France Nice is the most scenic IRONMAN in Europe, with a sea swim, a mountain bike course and a finish on the Promenade. Nice has hosted IRONMAN France regularly since 2005, and it became only the second place outside Kona, and the only one outside the US, to host the IRONMAN World Championship: the men's race in 2023, the women's in 2024 and the men's again on September 14, 2025. The 2027 race is on September 12, 2027. The swim is in the Mediterranean, and it was voted the 3rd Best IRONMAN Swim Course in EMEA in 2025. The bike is hilly: it climbs Les Pugets, the Col de Vence and an 18-kilometre ascent of the Col de l'Écre, with a positive elevation gain of 2400m, and a new route has removed the out-and-back sections at Cipières and the Col de Vence. The run is flat along the seafront. The cut-offs are strict: 2 hours 15 minutes for the swim, 10 hours 45 minutes for the swim and bike, and 16 hours for the full race, with intermediate bike cut-offs at Gourdon and Andon. IRONMAN 70.3 Nice runs on the same day, and full-distance athletes share the road until the base of the Col de Vence. General registration at 920.64 EUR is sold out, with special entries still available. It qualifies for the 2028 World Championship.

IRONMAN Lake Placid is the best IRONMAN in North America after Kona, and IRONMAN calls it the longest-running IRONMAN on the continent. It has been held every summer since 1999 in the town that hosted the Winter Olympics in 1932 and 1980. The 2027 race is on July 25, 2027, and registration is open with a general entry of $1,155 USD including fees. The swim is two loops of Mirror Lake. The bike is two loops through the Adirondack Mountains, with big climbs and fast descents, and it was named the Best Bike Course Globally in the 2023 Athlete Choice Awards. The run is two loops through the hilly town center, past Mill Hill, and finishes at the Olympic Oval. Athletes like it: in 2024 it was named the most recommended IRONMAN in North America and the second-best race in North America, and in 2025 it was ranked 4th Best IRONMAN Globally among other awards. The weather is cooler than many summer races, with a listed high of 75 °F, a low of 50 °F and an average water temperature of 72 °F. The 2026 professional winners were Paula Findlay of Canada and Marten Van Riel of Belgium. It is a qualifier for the 2027 World Championship. If you want a classic, hilly American race with a small-town feel, this is the one.

IRONMAN New Zealand in Taupō is the longest-running IRONMAN outside Kona, and the best early-season race. It began in 1985 as the first international qualifier for the World Championship, moved to Taupō in 1999, and has now held 25 editions there. The 2027 race is on March 6, 2027. The swim is in Lake Taupō, the largest freshwater lake in Oceania, and the bike is a two-lap 180km course past the Aratiatia Dam. Conditions are cool: IRONMAN lists a high of 19 °C, a low of 6 °C and an average water temperature of 18 °C, so bring warm layers for the early start. The cut-offs are generous, at 2:20 hours for the swim, 10:30:00 hours for the bike and 17:00:00 hours for the full race. The race has a rich history; local legends Cameron Brown and Joanna Lawn won 17 times between them, and 1,760 athletes entered the 30th anniversary race in 2014. General entry costs $1,580.02 NZD including fees and GST, rising to $2,141.16 NZD in a later tier, and athletes need Triathlon New Zealand membership or a One-Day Membership for $34.50. You can defer your entry to the 2028 race for any reason, though you give up any refund. It qualifies for the 2027 World Championship, which makes an early-season trip to New Zealand a strong way to chase a Kona slot.

IRONMAN Copenhagen is the best race on this list for a first IRONMAN or a personal best, and a great city break for families. The August 2010 race was Denmark's very first full-distance event, then called Challenge Copenhagen, with 1,600 entries. The 2027 race is on August 22, 2027; general registration is sold out and the general entry fee is listed as TBD, though charity entries through the IRONMAN Foundation Community Fund are available. The swim is a single 3.8 km loop in the calm, artificial lagoon at Amager Strandpark. The bike is a two-loop 180 km course through North Zealand along the coast IRONMAN calls the Danish Riviera, and bike catchers rack your bike at T2 in The King's New Square, Copenhagen's largest square. The run is four loops past the Little Mermaid, Amalienborg and Nyhavn, finishing at Christiansborg Palace, home of the Danish Parliament. It is the coolest race on this list, with an average water temperature and a high air temperature of 18 °C each, which suits athletes who struggle in heat. Getting there is easy: Copenhagen airport connects to 129 cities. Finish an IRONMAN 70.3 and an IRONMAN in the Nordics in the same year and you earn the Viking of the North recognition. It qualifies for the 2027 World Championship.

IRONMAN Cozumel is the warm-water race for a fast time, and the latest race of the year on this list. The next edition is on November 22, 2026; the 2027 date had not been posted when we checked. It hosts the IRONMAN Latin American Championship in 2026, which draws a strong regional field, and it was named 2nd Best Overall race in Latin America in the 2024 Athlete Choice Awards. The 2024 race drew 1,951 triathletes from 54 countries for its sixteenth edition, when Bart Aernouts won in 7:39:24 and Anne Reischmann in 08:34:08. The course is built for speed. The ocean swim is in the protected Cozumel Reefs National Marine Park; in 2024 it ran 3.8 km from the Fonatur Marina to Chankanaab Park. The bike is three flat laps around the island for 180 kms, which IRONMAN calls ideal for those who want an IRONMAN PR, and the run is flat along the waterfront to a finish at the City Hall plaza. The catch is heat: IRONMAN lists a high of 29 °C and an average water temperature of 26 °C, the warmest water on this list with Kona. The general entry costs $908.88 USD including processing fees, and it is a qualifier for the 2027 World Championship. Train for heat and humidity, and the flat course can reward you.

IRONMAN Australia in Port Macquarie is the best full-distance race in Australia, and from 2026 it moved to October for warmer air and water and longer daylight. The race was established in 1985 at Forster and Tuncurry and has been held in Port Macquarie since 2006; IRONMAN calls it the OG IRONMAN in Australia, with 35+ years of stories. The 2027 race is on October 17, 2027. The swim is in the river and includes a crossing of the weir. The bike rolls along Ocean Drive, loops to the Tacking Point Lighthouse and turns at Lake Cathie, and IRONMAN calls it the most varied IRONMAN course in Australia. The run is flat. IRONMAN lists a high of 24 °C, a low of 13 °C and an average water temperature of 23 °C. The cut-offs are 2 hours 20mins for the swim, 10 hours 30mins for the bike and 17 hours for the full race from your individual start time. The general entry costs $1415.00 AUD including fees and GST, rising to $2090.02 AUD in the next tier, and you need AusTriathlon membership or a One-Day Licence for $42.84. The new date makes it one of the first chances anywhere to qualify for the following year's World Championship, and it offers slots for 2028. The race also brings approximately 9,500 visitors and more than $11 million to local businesses.