A first full distance
The best IRONMAN for beginners
A first IRONMAN goes better on a flat course, in water where a wetsuit is likely, on a day that is not too hot. These are the races that meet all three, flattest first.
The 10 best IRONMAN races for a first attempt
Water 18 to 24 °C, highs of 28 °C or less, least climbing first.
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1. IRONMAN Maryland
Cambridge, United States · 18 Sept 2027
Climbs 141 m on the bike and 80 m on the run. Water around 22 °C, highs of 26 °C, 17 h to finish.
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2. IRONMAN California
Sacramento, United States · 24 Oct 2027
Climbs 216 m on the bike and 120 m on the run. Water around 18 °C, highs of 24 °C, 17 h to finish.
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3. IRONMAN Western Australia
Busselton, Australia · 6 Dec 2026
Climbs 304 m on the bike and 104 m on the run. Water around 21 °C, highs of 23 °C, 17 h to finish.
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4. IRONMAN Hamburg
Hamburg, Germany · 6 Jun 2027
Climbs 400 m on the bike and 77 m on the run. Water around 21 °C, highs of 20 °C, 15 h 30 min to finish.
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5. IRONMAN Florida
Panama City Beach, United States · 7 Nov 2026
Climbs 545 m on the bike and 77 m on the run. Water around 22 °C, highs of 27 °C, 17 h to finish.
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6. IRONMAN Tallinn
Tallinn, Estonia · 7 Aug 2027
Climbs 635 m on the bike and 82 m on the run. Water around 18 °C, highs of 21 °C, 17 h to finish.
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7. IRONMAN Kalmar-Sweden
Kalmar, Sweden · 21 Aug 2027
Climbs 750 m on the bike and 90 m on the run. Water around 20 °C, highs of 20 °C, 16 h to finish.
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8. IRONMAN Calella-Barcelona
Calella, Spain · 3 Oct 2027
Climbs 750 m on the bike. Water around 22 °C, highs of 25 °C, 16 h 20 min to finish.
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9. IRONMAN Brazil
Brazil · 13 Jun 2027
Climbs 807 m on the bike and 70 m on the run. Water around 20 °C, highs of 24 °C, 17 h to finish.
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10. IRONMAN Oman
Muscat, Oman · 5 Dec 2026
Climbs 819 m on the bike and 106 m on the run. Water around 24 °C, highs of 28 °C.
How this list is built. It keeps the races where the average water is between 18 °C and 24 °C, so a wetsuit is likely to be allowed and the swim is not cold, and where race-day highs stay at 28 °C or below. Those races are then ordered by bike elevation gain, least first.
6 races in this group publish no elevation figure and are not ranked.
The best first IRONMAN in Europe
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1. IRONMAN Hamburg
Hamburg, Germany · 6 Jun 2027
Climbs 400 m on the bike and 77 m on the run. Water around 21 °C, highs of 20 °C, 15 h 30 min to finish.
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2. IRONMAN Tallinn
Tallinn, Estonia · 7 Aug 2027
Climbs 635 m on the bike and 82 m on the run. Water around 18 °C, highs of 21 °C, 17 h to finish.
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3. IRONMAN Kalmar-Sweden
Kalmar, Sweden · 21 Aug 2027
Climbs 750 m on the bike and 90 m on the run. Water around 20 °C, highs of 20 °C, 16 h to finish.
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4. IRONMAN Calella-Barcelona
Calella, Spain · 3 Oct 2027
Climbs 750 m on the bike. Water around 22 °C, highs of 25 °C, 16 h 20 min to finish.
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5. IRONMAN Copenhagen
Copenhagen, Denmark · 22 Aug 2027
Climbs 1100 m on the bike. Water around 18 °C, highs of 18 °C, 15 h 45 min to finish.
2 races in this group publish no elevation figure and are not ranked.
The best first IRONMAN in the USA
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1. IRONMAN Maryland
Cambridge, United States · 18 Sept 2027
Climbs 141 m on the bike and 80 m on the run. Water around 22 °C, highs of 26 °C, 17 h to finish.
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2. IRONMAN California
Sacramento, United States · 24 Oct 2027
Climbs 216 m on the bike and 120 m on the run. Water around 18 °C, highs of 24 °C, 17 h to finish.
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3. IRONMAN Florida
Panama City Beach, United States · 7 Nov 2026
Climbs 545 m on the bike and 77 m on the run. Water around 22 °C, highs of 27 °C, 17 h to finish.
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4. IRONMAN Wisconsin
Madison, United States · 12 Sept 2027
Climbs 1702 m on the bike and 231 m on the run. Water around 24 °C, highs of 28 °C, 17 h to finish.
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5. IRONMAN Lake Placid
Lake Placid, United States · 25 Jul 2027
Climbs 2164 m on the bike and 383 m on the run. Water around 22 °C, highs of 24 °C, 17 h to finish.
The IRONMAN in the USA page compares these races by season, climbing and water, alongside the IRONMAN 70.3 races of the country.
The best first 70.3
The same three filters over the half distance.
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1. IRONMAN 70.3 Texas
Galveston Island, United States · 4 Apr 2027
Climbs 22 m on the bike and 17 m on the run. Water around 22 °C, highs of 26 °C, 8 h 30 min to finish.
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2. IRONMAN 70.3 Erkner
Erkner, Germany · 12 Sept 2027
Climbs 50 m on the bike and 30 m on the run. Water around 20 °C, highs of 20 °C, 8 h 30 min to finish.
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3. IRONMAN 70.3 Duisburg
Duisburg, Germany · 29 Aug 2027
Climbs 120 m on the bike and 30 m on the run. Water around 21 °C, highs of 25 °C, 8 h 30 min to finish.
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4. IRONMAN 70.3 Western Australia
Busselton, Australia · 6 Dec 2026
Climbs 154 m on the bike and 12 m on the run. Water around 19 °C, highs of 23 °C, 8 h 30 min to finish.
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5. IRONMAN 70.3 Leipzig
Leipzig, Germany · 8 Aug 2027
Climbs 180 m on the bike and 30 m on the run. Water around 22 °C, highs of 25 °C, 8 h 30 min to finish.
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6. IRONMAN 70.3 North Carolina
Wilmington, United States · 16 Oct 2027
Climbs 196 m on the bike and 80 m on the run. Water around 22 °C, highs of 23 °C, 8 h 30 min to finish.
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7. IRONMAN 70.3 Western Sydney
Penrith, Australia · 2 May 2027
Climbs 206 m on the bike and 52 m on the run. Water around 19 °C, highs of 21 °C, 8 h 30 min to finish.
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8. IRONMAN 70.3 New York
Jones Beach, United States · 24 Oct 2026
Climbs 230 m on the bike and 20 m on the run. Water around 18 °C, highs of 18 °C, 8 h 30 min to finish.
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9. IRONMAN 70.3 Emilia Romagna
Cervia, Italy · 19 Sept 2027
Climbs 264 m on the bike and 32 m on the run. Water around 22 °C, highs of 23 °C, 8 h 30 min to finish.
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10. IRONMAN 70.3 Waco
Waco, United States · 14 Nov 2027
Climbs 315 m on the bike and 91 m on the run. Water around 18 °C, highs of 26 °C, 8 h 30 min to finish.
12 races in this group publish no elevation figure and are not ranked.
Why these three filters
Water. Under 18 °C the swim gets cold even in a wetsuit; above 24.5 °C the wetsuit is no longer allowed for age-group awards. Between the two, most first-timers swim in the neoprene they trained in.
Heat. The marathon starts in the afternoon. Highs above 28 °C make it a different race.
Climbing. The less climbing, the more predictable the pacing. For climbing alone, see the easiest IRONMAN courses.
This page picks a first full distance with three filters. The easiest IRONMAN courses page ranks the full distance by climbing alone, and the easiest 70.3 races page covers the half distance.
Every full-distance IRONMAN, to filter
Start from the month you can train for.
- IRONMAN Gurye Korea
Gurye, South Korea
- Date
- 4 Oct 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 24 °C
- Bike
- Flat
- Run
- Hilly
- Entries
- Closed
- IRONMAN San Juan
San Juan, Argentina
- Date
- 1 Nov 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 22 °C
- Bike
- Rolling
- Run
- Rolling
- Entries
- Closed
- IRONMAN Florida
Panama City Beach, United States
- Date
- 7 Nov 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 22 °C
- Bike
- Flat
- Run
- Flat
- Entries
- Closed
- IRONMAN Malaysia
Langkawi, Malaysia
- Date
- 21 Nov 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 29 °C
- Bike
- Hilly
- Run
- Flat
- Entries
- Open
- IRONMAN Cozumel
Cozumel, Mexico
- Date
- 22 Nov 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 26 °C
- Bike
- Flat
- Run
- Flat
- Entries
- Open
- IRONMAN Valdivia
Valdivia, Chile
- Date
- 29 Nov 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 14 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Sold out
- IRONMAN Oman
Muscat, Oman
- Date
- 5 Dec 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 24 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Open
- IRONMAN Western Australia
Busselton, Australia
- Date
- 6 Dec 2026
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 21 °C
- Bike
- Flat
- Run
- Flat
- Entries
- Sold out
- IRONMAN New Zealand
Taupo, New Zealand
- Date
- 6 Mar 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 18 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Open
- IRONMAN Penghu
Penghu, Taiwan
- Date
- 11 Apr 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 24 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Open
- IRONMAN South Africa, Mossel Bay
Mossel Bay, South Africa
- Date
- 18 Apr 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 20 °C
- Bike
- Hilly
- Run
- Rolling
- Entries
- Open
- IRONMAN Texas
The Woodlands, United States
- Date
- 24 Apr 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 23 °C
- Bike
- Flat
- Run
- Rolling
- Entries
- Sold out
- IRONMAN Vietnam
Da Nang, Vietnam
- Date
- 9 May 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 29 °C
- Bike
- Flat
- Run
- Flat
- Entries
- Open
- IRONMAN Lanzarote
Lanzarote, Spain
- Date
- 15 May 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 20 °C
- Bike
- Hilly
- Run
- Rolling
- Entries
- Open
- IRONMAN Jacksonville
Jacksonville, United States
- Date
- 16 May 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 26 °C
- Bike
- Flat
- Run
- Rolling
- Entries
- Open
- IRONMAN Hamburg
Hamburg, Germany
- Date
- 6 Jun 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 21 °C
- Bike
- Flat
- Run
- Rolling
- Entries
- Sold out
- IRONMAN Brazil
Brazil
- Date
- 13 Jun 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 20 °C
- Bike
- Flat
- Run
- Flat
- Entries
- Sold out
- IRONMAN Cairns
Cairns, Australia
- Date
- 13 Jun 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 23 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Open
- IRONMAN Kaernten-Klagenfurt, Austria
Klagenfurt, Austria
- Date
- 13 Jun 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 23 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Sold out
- IRONMAN Philippines Davao City
Davao City, Philippines
- Date
- 13 Jun 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 28 °C
- Bike
- Flat
- Run
- Rolling
- Entries
- Open
- IRONMAN Frankfurt
Frankfurt, Germany
- Date
- 27 Jun 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 23 °C
- Bike
- Rolling
- Run
- Rolling
- Entries
- Sold out
- IRONMAN Les Sables d'Olonne-Vendee
Les Sables d'Olonne, France
- Date
- 27 Jun 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 20 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Open
- IRONMAN Switzerland Thun
Thun, Switzerland
- Date
- 4 Jul 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 17 °C
- Bike
- Hilly
- Run
- Flat
- Entries
- Sold out
- IRONMAN Vitoria-Gasteiz
Vitoria-Gasteiz, Spain
- Date
- 11 Jul 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 21 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Sold out
- IRONMAN Lake Placid
Lake Placid, United States
- Date
- 25 Jul 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 22 °C
- Bike
- Hilly
- Run
- Rolling
- Entries
- Open
- IRONMAN Tallinn
Tallinn, Estonia
- Date
- 7 Aug 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 18 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Open
- IRONMAN Canada-Ottawa
Ottawa, Canada
- Date
- 8 Aug 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 21 °C
- Bike
- Rolling
- Run
- Flat
- Entries
- Open
- IRONMAN Leeds
Leeds, United Kingdom
- Date
- 15 Aug 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 21 °C
- Bike
- Hilly
- Run
- Hilly
- Entries
- Open
- IRONMAN Kalmar-Sweden
Kalmar, Sweden
- Date
- 21 Aug 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 20 °C
- Bike
- Flat
- Run
- Flat
- Entries
- Sold out
- IRONMAN Copenhagen
Copenhagen, Denmark
- Date
- 22 Aug 2027
- Distance
- Full
- Circuit
- IRONMAN
- Water
- 18 °C
- Bike
- Rolling
- Run
- Rolling
- Entries
- Sold out
Time to finish
Most full-distance IRONMAN races close 17 h after the start, the longest 17 h and the shortest 15 h 30 min. A first-timer should check the intermediate cut-offs too: the swim usually closes after 2 h 20 and the bike after about 10 h 30.
Your shortlist on the same rows
Month, water, heat and cut-off, side by side.
IRONMAN Western Australia
IRONMAN Hamburg
IRONMAN Florida
- Race 1 IRONMAN Western Australia
- Race 2 IRONMAN Hamburg
- Race 3 IRONMAN Florida
- Circuit
- IRONMANIRONMANIRONMAN
- Distance
- Full distanceFull distanceFull distance
- Terrain
- RoadRoadRoad
- Swim
- 3.8 km3.8 km3.8 km
- Bike
- 180 km180 km180 km
- Run
- 42.2 km42.2 km42.2 km
- Date
- 6 Dec 20266 Jun 20277 Nov 2026
- Country
- AustraliaGermanyUnited States
- Registration
- Sold outSold outClosed
- Swim venue
- BayLakeOcean
- Average water temperature
- 21 °C21 °C22 °C
- High air temperature
- 23 °C20 °C27 °C
- Low air temperature
- 16 °C10 °C16 °C
- Bike profile
- FlatFlatFlat
- Bike elevation gain
- 304 m400 m545 m
- Run profile
- FlatRollingFlat
- Run elevation gain
- 104 m77 m77 m
- Overall cut-off
- 17 h15 h 30 min17 h
- Altitude
- 4 m9 m7 m
- First edition
- 200420171999
- Swim start
- Rolling startRolling startRolling start
What the list cannot know
Where you live and when you can train. A race in May asks for a winter of indoor training in the north; a race in October for a summer of long days. Count the travel too: a long flight before a first IRONMAN costs more than any hill.
For a race in Europe, the IRONMAN in Europe guide sets the full-distance races side by side on water, climbing and cut-off.
Questions this page is asked
What is the best IRONMAN for beginners?
On the three filters above, the top of the list is the flattest course with mild water and mild heat. Choose among the first five by month and travel.
What is the best first IRONMAN in Europe?
The European list above applies the same filters. Several are lake or sea swims in early summer, with highs around 20 to 25 °C.
How long do I have to finish an IRONMAN?
Most full-distance IRONMAN races give 17 h, with cut-offs after the swim and the bike. The race page gives the figure when the organiser publishes it.
Should a first IRONMAN be flat?
It helps, because pacing is easier to hold. A rolling course in cool air can still be a good first choice. The hardest courses are the ones to leave for later.
What are the best IRONMAN races overall?
That depends on what you want from the day. The race finder crosses month, region, water and course, and the IRONMAN schedule lists every race by date.
Pick the month, then the race
Open the finder on full-distance IRONMAN races.
