Make the differences impossible to miss. Shortlist two or three start lines, compare the evidence against your life, then carry one informed decision into training.
Choose race one supertri Blenheim Palace Dorney Lake Triathlon Singapore T100 Triathlon IRONMAN Frankfurt (European Championship) IRONMAN Hamburg IRONMAN Vitoria-Gasteiz Outlaw Half Nottingham Outlaw Nottingham IRONMAN 70.3 Duisburg IRONMAN 70.3 Malaga IRONMAN 70.3 Muncie IRONMAN Copenhagen IRONMAN 70.3 Belgrade IRONMAN 70.3 Brasília Outlaw Half Holkham IRONMAN 70.3 Tallinn IRONMAN 70.3 Westfriesland IRONMAN 70.3 Boulder IRONMAN 70.3 Musselman IRONMAN 70.3 Ohio Supertri New Jersey IRONMAN 70.3 Kraichgau IRONMAN 70.3 Erkner IRONMAN 70.3 La Quinta IRONMAN Texas IRONMAN 70.3 Oceanside Royal Windsor Triathlon IRONMAN 70.3 Aracaju-Sergipe IRONMAN Canada-Ottawa Ascension Seton Supertri Austin IRONMAN 70.3 Rio de Janeiro IRONMAN 70.3 San Salvador IRONMAN 70.3 Vichy IRONMAN Oman IRONMAN California IRONMAN 70.3 Cozumel IRONMAN Valdivia IRONMAN 70.3 Dhofar IRONMAN 70.3 Nelson Mandela Bay IRONMAN 70.3 Luxembourg IRONMAN 70.3 Eagleman IRONMAN 70.3 Tours Metropole - Loire Valley IRONMAN Austria (Klagenfurt) IRONMAN Maryland Supertri Toronto Belvoir Castle Triathlon IRONMAN 70.3 Gulf Coast Saudi Arabia T100 Triathlon IRONMAN 70.3 Vitoria-Gasteiz IRONMAN 70.3 Florida IRONMAN 70.3 Omaha IRONMAN 70.3 Melbourne IRONMAN Kalmar IRONMAN Florida IRONMAN Cozumel IRONMAN Tallinn IRONMAN 70.3 Italy Emilia-Romagna IRONMAN 70.3 Cascais IRONMAN 70.3 Santa Cruz IRONMAN 70.3 Texas Dubai T100 Triathlon Qatar T100 Triathlon Gold Coast T100 Triathlon IRONMAN 70.3 Venice-Jesolo IRONMAN 70.3 Jönköping IRONMAN 70.3 Leipzig IRONMAN 70.3 Mamaia Constanta IRONMAN 70.3 Costa Navarino IRONMAN 70.3 Dallas-Little Elm IRONMAN 70.3 Northern California IRONMAN 70.3 Pennsylvania Happy Valley IRONMAN 70.3 Boise IRONMAN 70.3 Victoria IRONMAN 70.3 Mont-Tremblant IRONMAN 70.3 Muskoka IRONMAN 70.3 Campeche IRONMAN 70.3 Pucón IRONMAN 70.3 Puerto Varas IRONMAN 70.3 Peru IRONMAN 70.3 Punta del Este IRONMAN 70.3 Western Australia IRONMAN 70.3 New Zealand IRONMAN 70.3 Agadir Slateman Triathlon IRONMAN Italy Emilia-Romagna IRONMAN Western Australia IRONMAN New Zealand IRONMAN 70.3 Zell am See-Kaprun IRONMAN Switzerland Thun IRONMAN Wisconsin IRONMAN Belgium Knokke-Heist IRONMAN 70.3 Puerto Rico IRONMAN 70.3 Colombo IRONMAN 70.3 Swansea IRONMAN 70.3 Mallorca IRONMAN 70.3 Rockford - Illinois IRONMAN 70.3 Panama IRONMAN 70.3 Encarnación IRONMAN 70.3 Bahrain IRONMAN 70.3 Durban IRONMAN World Championship IRONMAN Philippines Davao City IRONMAN 70.3 Maine IRONMAN 70.3 Versailles IRONMAN 70.3 Oregon IRONMAN 70.3 World Championship IRONMAN 70.3 Veracruz IRONMAN 70.3 Los Cabos IRONMAN 70.3 São Paulo IRONMAN 70.3 Valdivia IRONMAN 70.3 San Juan IRONMAN 70.3 Port Macquarie IRONMAN 70.3 Langkawi IRONMAN 70.3 Chattanooga IRONMAN Les Sables d'Olonne-Vendee IRONMAN 70.3 New York IRONMAN Jacksonville IRONMAN San Juan IRONMAN Australia IRONMAN Malaysia IRONMAN 70.3 Elsinore IRONMAN 70.3 Valencia IRONMAN 70.3 Florianópolis IRONMAN 70.3 Cartagena IRONMAN 70.3 Davao Philippines IRONMAN France (Nice) IRONMAN 70.3 Barranquilla IRONMAN 70.3 Desaru Coast IRONMAN 70.3 Turkiye IRONMAN 70.3 Vilamoura-Algarve Vancouver T100 Triathlon IRONMAN 70.3 Alghero IRONMAN Vichy IRONMAN 70.3 Poreč IRONMAN 70.3 North Carolina IRONMAN 70.3 Hawai`i IRONMAN 70.3 Geelong IRONMAN 70.3 Cairns IRONMAN 70.3 Sunshine Coast IRONMAN 70.3 Kenting IRONMAN 70.3 Goa IRONMAN 70.3 Laoag IRONMAN 70.3 Phu Quoc IRONMAN 70.3 Da Nang IRONMAN 70.3 Sharm El-Sheikh IRONMAN 70.3 Doha Cholmondeley Castle Triathlon IRONMAN 70.3 Switzerland IRONMAN 70.3 St. Pölten IRONMAN Portugal-Cascais IRONMAN Cairns IRONMAN Penghu IRONMAN Vietnam IRONMAN South Africa IRONMAN 70.3 Weymouth Snowman Triathlon IRONMAN 70.3 Aix-en-Provence IRONMAN 70.3 Bolton IRONMAN 70.3 Coeur d'Alene IRONMAN 70.3 Ruidoso New Mexico IRONMAN 70.3 Curitiba IRONMAN 70.3 Western Sydney IRONMAN Lanzarote IRONMAN Lake Placid IRONMAN Leeds IRONMAN 70.3 Muscat IRONMAN 70.3 Hengqin IRONMAN Wales IRONMAN Brazil IRONMAN 70.3 Nice Marbella T100 Triathlon IRONMAN 70.3 Mossel Bay London T100 Triathlon Weekend Choose race two supertri Blenheim Palace Dorney Lake Triathlon Singapore T100 Triathlon IRONMAN Frankfurt (European Championship) IRONMAN Hamburg IRONMAN Vitoria-Gasteiz Outlaw Half Nottingham Outlaw Nottingham IRONMAN 70.3 Duisburg IRONMAN 70.3 Malaga IRONMAN 70.3 Muncie IRONMAN Copenhagen IRONMAN 70.3 Belgrade IRONMAN 70.3 Brasília Outlaw Half Holkham IRONMAN 70.3 Tallinn IRONMAN 70.3 Westfriesland IRONMAN 70.3 Boulder IRONMAN 70.3 Musselman IRONMAN 70.3 Ohio Supertri New Jersey IRONMAN 70.3 Kraichgau IRONMAN 70.3 Erkner IRONMAN 70.3 La Quinta IRONMAN Texas IRONMAN 70.3 Oceanside Royal Windsor Triathlon IRONMAN 70.3 Aracaju-Sergipe IRONMAN Canada-Ottawa Ascension Seton Supertri Austin IRONMAN 70.3 Rio de Janeiro IRONMAN 70.3 San Salvador IRONMAN 70.3 Vichy IRONMAN Oman IRONMAN California IRONMAN 70.3 Cozumel IRONMAN Valdivia IRONMAN 70.3 Dhofar IRONMAN 70.3 Nelson Mandela Bay IRONMAN 70.3 Luxembourg IRONMAN 70.3 Eagleman IRONMAN 70.3 Tours Metropole - Loire Valley IRONMAN Austria (Klagenfurt) IRONMAN Maryland Supertri Toronto Belvoir Castle Triathlon IRONMAN 70.3 Gulf Coast Saudi Arabia T100 Triathlon IRONMAN 70.3 Vitoria-Gasteiz IRONMAN 70.3 Florida IRONMAN 70.3 Omaha IRONMAN 70.3 Melbourne IRONMAN Kalmar IRONMAN Florida IRONMAN Cozumel IRONMAN Tallinn IRONMAN 70.3 Italy Emilia-Romagna IRONMAN 70.3 Cascais IRONMAN 70.3 Santa Cruz IRONMAN 70.3 Texas Dubai T100 Triathlon Qatar T100 Triathlon Gold Coast T100 Triathlon IRONMAN 70.3 Venice-Jesolo IRONMAN 70.3 Jönköping IRONMAN 70.3 Leipzig IRONMAN 70.3 Mamaia Constanta IRONMAN 70.3 Costa Navarino IRONMAN 70.3 Dallas-Little Elm IRONMAN 70.3 Northern California IRONMAN 70.3 Pennsylvania Happy Valley IRONMAN 70.3 Boise IRONMAN 70.3 Victoria IRONMAN 70.3 Mont-Tremblant IRONMAN 70.3 Muskoka IRONMAN 70.3 Campeche IRONMAN 70.3 Pucón IRONMAN 70.3 Puerto Varas IRONMAN 70.3 Peru IRONMAN 70.3 Punta del Este IRONMAN 70.3 Western Australia IRONMAN 70.3 New Zealand IRONMAN 70.3 Agadir Slateman Triathlon IRONMAN Italy Emilia-Romagna IRONMAN Western Australia IRONMAN New Zealand IRONMAN 70.3 Zell am See-Kaprun IRONMAN Switzerland Thun IRONMAN Wisconsin IRONMAN Belgium Knokke-Heist IRONMAN 70.3 Puerto Rico IRONMAN 70.3 Colombo IRONMAN 70.3 Swansea IRONMAN 70.3 Mallorca IRONMAN 70.3 Rockford - Illinois IRONMAN 70.3 Panama IRONMAN 70.3 Encarnación IRONMAN 70.3 Bahrain IRONMAN 70.3 Durban IRONMAN World Championship IRONMAN Philippines Davao City IRONMAN 70.3 Maine IRONMAN 70.3 Versailles IRONMAN 70.3 Oregon IRONMAN 70.3 World Championship IRONMAN 70.3 Veracruz IRONMAN 70.3 Los Cabos IRONMAN 70.3 São Paulo IRONMAN 70.3 Valdivia IRONMAN 70.3 San Juan IRONMAN 70.3 Port Macquarie IRONMAN 70.3 Langkawi IRONMAN 70.3 Chattanooga IRONMAN Les Sables d'Olonne-Vendee IRONMAN 70.3 New York IRONMAN Jacksonville IRONMAN San Juan IRONMAN Australia IRONMAN Malaysia IRONMAN 70.3 Elsinore IRONMAN 70.3 Valencia IRONMAN 70.3 Florianópolis IRONMAN 70.3 Cartagena IRONMAN 70.3 Davao Philippines IRONMAN France (Nice) IRONMAN 70.3 Barranquilla IRONMAN 70.3 Desaru Coast IRONMAN 70.3 Turkiye IRONMAN 70.3 Vilamoura-Algarve Vancouver T100 Triathlon IRONMAN 70.3 Alghero IRONMAN Vichy IRONMAN 70.3 Poreč IRONMAN 70.3 North Carolina IRONMAN 70.3 Hawai`i IRONMAN 70.3 Geelong IRONMAN 70.3 Cairns IRONMAN 70.3 Sunshine Coast IRONMAN 70.3 Kenting IRONMAN 70.3 Goa IRONMAN 70.3 Laoag IRONMAN 70.3 Phu Quoc IRONMAN 70.3 Da Nang IRONMAN 70.3 Sharm El-Sheikh IRONMAN 70.3 Doha Cholmondeley Castle Triathlon IRONMAN 70.3 Switzerland IRONMAN 70.3 St. Pölten IRONMAN Portugal-Cascais IRONMAN Cairns IRONMAN Penghu IRONMAN Vietnam IRONMAN South Africa IRONMAN 70.3 Weymouth Snowman Triathlon IRONMAN 70.3 Aix-en-Provence IRONMAN 70.3 Bolton IRONMAN 70.3 Coeur d'Alene IRONMAN 70.3 Ruidoso New Mexico IRONMAN 70.3 Curitiba IRONMAN 70.3 Western Sydney IRONMAN Lanzarote IRONMAN Lake Placid IRONMAN Leeds IRONMAN 70.3 Muscat IRONMAN 70.3 Hengqin IRONMAN Wales IRONMAN Brazil IRONMAN 70.3 Nice Marbella T100 Triathlon IRONMAN 70.3 Mossel Bay London T100 Triathlon Weekend Choose race three supertri Blenheim Palace Dorney Lake Triathlon Singapore T100 Triathlon IRONMAN Frankfurt (European Championship) IRONMAN Hamburg IRONMAN Vitoria-Gasteiz Outlaw Half Nottingham Outlaw Nottingham IRONMAN 70.3 Duisburg IRONMAN 70.3 Malaga IRONMAN 70.3 Muncie IRONMAN Copenhagen IRONMAN 70.3 Belgrade IRONMAN 70.3 Brasília Outlaw Half Holkham IRONMAN 70.3 Tallinn IRONMAN 70.3 Westfriesland IRONMAN 70.3 Boulder IRONMAN 70.3 Musselman IRONMAN 70.3 Ohio Supertri New Jersey IRONMAN 70.3 Kraichgau IRONMAN 70.3 Erkner IRONMAN 70.3 La Quinta IRONMAN Texas IRONMAN 70.3 Oceanside Royal Windsor Triathlon IRONMAN 70.3 Aracaju-Sergipe IRONMAN Canada-Ottawa Ascension Seton Supertri Austin IRONMAN 70.3 Rio de Janeiro IRONMAN 70.3 San Salvador IRONMAN 70.3 Vichy IRONMAN Oman IRONMAN California IRONMAN 70.3 Cozumel IRONMAN Valdivia IRONMAN 70.3 Dhofar IRONMAN 70.3 Nelson Mandela Bay IRONMAN 70.3 Luxembourg IRONMAN 70.3 Eagleman IRONMAN 70.3 Tours Metropole - Loire Valley IRONMAN Austria (Klagenfurt) IRONMAN Maryland Supertri Toronto Belvoir Castle Triathlon IRONMAN 70.3 Gulf Coast Saudi Arabia T100 Triathlon IRONMAN 70.3 Vitoria-Gasteiz IRONMAN 70.3 Florida IRONMAN 70.3 Omaha IRONMAN 70.3 Melbourne IRONMAN Kalmar IRONMAN Florida IRONMAN Cozumel IRONMAN Tallinn IRONMAN 70.3 Italy Emilia-Romagna IRONMAN 70.3 Cascais IRONMAN 70.3 Santa Cruz IRONMAN 70.3 Texas Dubai T100 Triathlon Qatar T100 Triathlon Gold Coast T100 Triathlon IRONMAN 70.3 Venice-Jesolo IRONMAN 70.3 Jönköping IRONMAN 70.3 Leipzig IRONMAN 70.3 Mamaia Constanta IRONMAN 70.3 Costa Navarino IRONMAN 70.3 Dallas-Little Elm IRONMAN 70.3 Northern California IRONMAN 70.3 Pennsylvania Happy Valley IRONMAN 70.3 Boise IRONMAN 70.3 Victoria IRONMAN 70.3 Mont-Tremblant IRONMAN 70.3 Muskoka IRONMAN 70.3 Campeche IRONMAN 70.3 Pucón IRONMAN 70.3 Puerto Varas IRONMAN 70.3 Peru IRONMAN 70.3 Punta del Este IRONMAN 70.3 Western Australia IRONMAN 70.3 New Zealand IRONMAN 70.3 Agadir Slateman Triathlon IRONMAN Italy Emilia-Romagna IRONMAN Western Australia IRONMAN New Zealand IRONMAN 70.3 Zell am See-Kaprun IRONMAN Switzerland Thun IRONMAN Wisconsin IRONMAN Belgium Knokke-Heist IRONMAN 70.3 Puerto Rico IRONMAN 70.3 Colombo IRONMAN 70.3 Swansea IRONMAN 70.3 Mallorca IRONMAN 70.3 Rockford - Illinois IRONMAN 70.3 Panama IRONMAN 70.3 Encarnación IRONMAN 70.3 Bahrain IRONMAN 70.3 Durban IRONMAN World Championship IRONMAN Philippines Davao City IRONMAN 70.3 Maine IRONMAN 70.3 Versailles IRONMAN 70.3 Oregon IRONMAN 70.3 World Championship IRONMAN 70.3 Veracruz IRONMAN 70.3 Los Cabos IRONMAN 70.3 São Paulo IRONMAN 70.3 Valdivia IRONMAN 70.3 San Juan IRONMAN 70.3 Port Macquarie IRONMAN 70.3 Langkawi IRONMAN 70.3 Chattanooga IRONMAN Les Sables d'Olonne-Vendee IRONMAN 70.3 New York IRONMAN Jacksonville IRONMAN San Juan IRONMAN Australia IRONMAN Malaysia IRONMAN 70.3 Elsinore IRONMAN 70.3 Valencia IRONMAN 70.3 Florianópolis IRONMAN 70.3 Cartagena IRONMAN 70.3 Davao Philippines IRONMAN France (Nice) IRONMAN 70.3 Barranquilla IRONMAN 70.3 Desaru Coast IRONMAN 70.3 Turkiye IRONMAN 70.3 Vilamoura-Algarve Vancouver T100 Triathlon IRONMAN 70.3 Alghero IRONMAN Vichy IRONMAN 70.3 Poreč IRONMAN 70.3 North Carolina IRONMAN 70.3 Hawai`i IRONMAN 70.3 Geelong IRONMAN 70.3 Cairns IRONMAN 70.3 Sunshine Coast IRONMAN 70.3 Kenting IRONMAN 70.3 Goa IRONMAN 70.3 Laoag IRONMAN 70.3 Phu Quoc IRONMAN 70.3 Da Nang IRONMAN 70.3 Sharm El-Sheikh IRONMAN 70.3 Doha Cholmondeley Castle Triathlon IRONMAN 70.3 Switzerland IRONMAN 70.3 St. Pölten IRONMAN Portugal-Cascais IRONMAN Cairns IRONMAN Penghu IRONMAN Vietnam IRONMAN South Africa IRONMAN 70.3 Weymouth Snowman Triathlon IRONMAN 70.3 Aix-en-Provence IRONMAN 70.3 Bolton IRONMAN 70.3 Coeur d'Alene IRONMAN 70.3 Ruidoso New Mexico IRONMAN 70.3 Curitiba IRONMAN 70.3 Western Sydney IRONMAN Lanzarote IRONMAN Lake Placid IRONMAN Leeds IRONMAN 70.3 Muscat IRONMAN 70.3 Hengqin IRONMAN Wales IRONMAN Brazil IRONMAN 70.3 Nice Marbella T100 Triathlon IRONMAN 70.3 Mossel Bay London T100 Triathlon Weekend
Your Race Decision Room These verdicts use your reality, not a universal difficulty ranking.
Invite a partner or coach ExperienceExperienced First long-distance race GoalFinish well Set a time Seek a challenge Maximum atmosphere Weakest disciplineNot sure Swim Bike Run Hours each week DistanceRace default Full Middle / 70.3 Olympic Sprint
Before entering: open the evidence guide and verify current details with the organiser. A higher score means better suitability for that factor, not an easier or objectively better race.