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Compare the course, the preparation time and the demands on your week. Find the start line that fits.

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Experienced · Finish well · 10 hours a week

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Suitability signals, not difficulty promises. Missing facts never improve a race’s ranking. How scoring works

Your strongest matches

Shown for an experienced athlete aiming to finish well on about 10 hours a week. Your own preparation may differ.

Strongest match

supertri Blenheim Palace

5 Jun 2027 · Woodstock, Oxfordshire · Sprint

Modelled athlete fit 85/100 · Observed awaiting verified data

Published swim setting: Lake.
Published terrain: Rolling.

Check: Cut-offs are not yet verified; confirm the current organiser limits before choosing this race.

Why this fit?

Modelled suitability from editorial course signals and your stated profile; not a measured difficulty rating or a probability of finishing.

First-timer 95/100 ×3 · PB potential 92/100 ×1 · Swim confidence 80/100 ×1 · Bike forgiveness 88/100 ×1 · Atmosphere 52/100 ×1. Weighted mean 597.0 ÷ 7 ≈ 85.286 → 85/100 rounded from full precision, with the 20–96 limit.

First-timer 95
PB potential 92
Swim confidence 80
Bike forgiveness 88
Atmosphere 52
Evidence High · 79

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Best alternative

Singapore T100 Triathlon

10 Apr 2027 · Marina Bay, Singapore · T100

Modelled athlete fit 78/100 · Observed awaiting verified data

Published swim setting: Lake.
Published terrain: Rolling.

Check: Cut-offs are not yet verified; confirm the current organiser limits before choosing this race.

Why this fit?

Modelled suitability from editorial course signals and your stated profile; not a measured difficulty rating or a probability of finishing.

First-timer 72/100 ×3 · PB potential 84/100 ×1 · Swim confidence 80/100 ×1 · Bike forgiveness 81/100 ×1 · Atmosphere 87/100 ×1. Weighted mean 548.0 ÷ 7 ≈ 78.286 → 78/100 rounded from full precision, with the 20–96 limit.

First-timer 72
PB potential 84
Swim confidence 80
Bike forgiveness 81
Atmosphere 87
Evidence Medium · 66

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Wildcard

IRONMAN Hamburg

6 Jun 2027 · Hamburg, Germany · Full

Modelled athlete fit 76/100 · Observed awaiting verified data

Published swim setting: Lake.
Published terrain: Flat.

Check: Cut-offs are not yet verified; confirm the current organiser limits before choosing this race.

Why this fit?

Modelled suitability from editorial course signals and your stated profile; not a measured difficulty rating or a probability of finishing.

First-timer 67/100 ×3 · PB potential 84/100 ×1 · Swim confidence 80/100 ×1 · Bike forgiveness 81/100 ×1 · Atmosphere 87/100 ×1. Weighted mean 533.0 ÷ 7 ≈ 76.143 → 76/100 rounded from full precision, with the 20–96 limit.

First-timer 67
PB potential 84
Swim confidence 80
Bike forgiveness 81
Atmosphere 87
Evidence Medium · 72

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Explore all matching races (190)

Race	Date	Location	Distance	Modelled fit	First-timer	PB potential	Swim confidence	Bike forgiveness	Atmosphere	Evidence
IRONMAN 70.3 Dhofar	24 Oct 2026	Salalah, Oman	70.3	65	62	57	80	54	79	Medium · 66
Challenge Shanghai	24 Oct 2026	Haiwan National Forest Park, Shanghai, China	70.3	52	52	50	52	54	52	Medium · 69
IRONMAN 70.3 New York	24 Oct 2026	Jones Beach, New York	70.3	50	47	58	38	61	52	Medium · 66
IRONMAN 70.3 Costa Navarino	25 Oct 2026	Costa Navarino, Messinia, Greece	70.3	60	57	77	38	81	52	High · 85
IRONMAN 70.3 Agadir	25 Oct 2026	Agadir, Morocco	70.3	60	57	77	38	81	52	Medium · 72
Challenge Forte Village	25 Oct 2026	Forte Village Resort, Sardinia, Italy	70.3	30	23	23	38	25	52	Medium · 69
IRONMAN San Juan	1 Nov 2026	San Juan, Argentina	Full	50	47	50	52	54	52	Medium · 63
IRONMAN 70.3 Turkiye	1 Nov 2026	Turkiye	70.3	48	47	50	38	54	52	High · 78
IRONMAN 70.3 Kenting	1 Nov 2026	Kenting, Pingtung, Taiwan	70.3	48	47	50	38	54	52	Medium · 69
IRONMAN 70.3 Goa	1 Nov 2026	Goa, India	70.3	48	47	50	38	54	52	Medium · 66
IRONMAN Florida	7 Nov 2026	Panama City Beach, Florida, USA	Full	59	52	77	38	81	60	Medium · 63
Challenge Xiamen	7 Nov 2026	Meifeng Sports Park, Xiamen, China	70.3	48	47	50	38	54	52	Medium · 69
IRONMAN 70.3 Melbourne	8 Nov 2026	St Kilda, Melbourne, Victoria, Australia	70.3	61	57	77	38	81	60	Medium · 72
IRONMAN 70.3 Campeche	8 Nov 2026	Campeche, Mexico	70.3	60	57	77	38	81	52	Medium · 69
Dubai T100 Triathlon	13 Nov 2026	Al Mamzar, Dubai	T100	60	57	77	38	81	52	Medium · 66
World Triathlon Championship Series Abu Dhabi	13 Nov 2026	Hudayriyat Island, Abu Dhabi	Sprint	60	57	77	38	81	52	Medium · 69
World Triathlon Cup Miyazaki	14 Nov 2026	Miyazaki Seaside Park, Miyazaki	Sprint	48	47	50	38	54	52	Medium · 69
IRONMAN 70.3 Phu Quoc	15 Nov 2026	Phu Quoc, Vietnam	70.3	48	47	50	38	54	52	Medium · 66
IRONMAN 70.3 Langkawi	21 Nov 2026	Langkawi, Kedah, Malaysia	70.3	52	52	50	52	54	52	Medium · 69
IRONMAN Malaysia	21 Nov 2026	Langkawi, Kedah, Malaysia	Full	50	47	50	52	54	52	Medium · 69
IRONMAN Cozumel	22 Nov 2026	Cozumel, Quintana Roo, Mexico	Full	59	52	77	38	81	60	Medium · 72
Challenge Canberra	22 Nov 2026	Black Mountain Peninsula, Canberra, Australia	70.3	43	38	30	80	25	52	Medium · 69
IRONMAN 70.3 Mossel Bay	22 Nov 2026	Mossel Bay, South Africa	70.3	30	23	23	38	25	52	High · 75
Saudi Arabia T100 Triathlon	27 Nov 2026	Saudi Arabia	T100	61	57	77	38	81	60	Medium · 63
IRONMAN 70.3 Aracaju-Sergipe	29 Nov 2026	Aracaju, Sergipe, Brazil	70.3	68	62	77	54	81	79	Medium · 72
IRONMAN Valdivia	29 Nov 2026	Valdivia, Chile	Full	63	57	77	54	81	60	Medium · 72
Challenge Florianópolis (November)	29 Nov 2026	Florianópolis, Santa Catarina, Brazil	70.3	60	57	77	38	81	52	Medium · 69
IRONMAN 70.3 Valdivia	29 Nov 2026	Valdivia, Chile	70.3	52	52	50	54	54	52	Medium · 66
IRONMAN 70.3 Cartagena	29 Nov 2026	Cartagena, Colombia	70.3	49	47	50	38	54	60	Medium · 66
IRONMAN Oman	5 Dec 2026	Muscat, Oman	Full	63	52	77	38	81	87	Medium · 69
IRONMAN 70.3 La Quinta	6 Dec 2026	La Quinta, California	70.3	73	72	84	80	81	52	Medium · 72
IRONMAN 70.3 Western Australia	6 Dec 2026	Busselton, Western Australia, Australia	70.3	60	57	77	38	81	52	Medium · 72
IRONMAN Western Australia	6 Dec 2026	Busselton, Western Australia, Australia	Full	58	52	77	38	81	52	Medium · 72
IRONMAN 70.3 Veracruz	6 Dec 2026	Veracruz, Mexico	70.3	52	52	50	52	54	52	Medium · 63
Qatar T100 Triathlon	10 Dec 2026	Lusail, Doha	T100	60	57	77	38	81	52	Medium · 66
IRONMAN 70.3 Bahrain	11 Dec 2026	Manama, Bahrain	70.3	53	52	50	52	54	60	Medium · 69
IRONMAN 70.3 Florida	13 Dec 2026	Haines City, Florida	70.3	62	62	57	80	54	60	Medium · 69
IRONMAN 70.3 Pucón	10 Jan 2027	Pucón, Chile	70.3	61	62	57	80	54	52	Medium · 69
Challenge Israman	29 Jan 2027	Royal Beach, Eilat, Israel	Full	28	20	23	38	25	52	Medium · 69
Challenge Sir Bani Yas	30 Jan 2027	Sir Bani Yas Island, Abu Dhabi, United Arab Emirates	Full	58	52	77	38	81	52	Medium · 66
IRONMAN 70.3 Nelson Mandela Bay	31 Jan 2027	Gqeberha (Port Elizabeth), South Africa	70.3	64	57	77	38	81	79	Medium · 69
IRONMAN 70.3 Muscat	6 Feb 2027	Muscat, Oman	70.3	35	23	23	38	25	87	Medium · 69
IRONMAN 70.3 San Salvador	7 Feb 2027	San Salvador, El Salvador	70.3	66	62	57	80	54	87	Medium · 72
Challenge Wānaka	20 Feb 2027	Roys Bay, Wānaka, New Zealand	T100	61	62	57	80	54	52	Medium · 66
IRONMAN 70.3 Panama	28 Feb 2027	Panama City, Panama	70.3	53	52	50	52	54	60	Medium · 72
IRONMAN 70.3 New Zealand	6 Mar 2027	Taupō, New Zealand	70.3	61	62	57	80	54	52	Medium · 72
IRONMAN New Zealand	6 Mar 2027	Taupō, New Zealand	Full	59	57	57	80	54	52	Medium · 72
IRONMAN 70.3 Punta del Este	7 Mar 2027	Punta del Este, Uruguay	70.3	60	57	77	38	81	52	Medium · 63
IRONMAN 70.3 Dallas-Little Elm	14 Mar 2027	Little Elm, Texas	70.3	61	62	57	80	54	52	Medium · 72
IRONMAN 70.3 Puerto Rico	14 Mar 2027	San Juan, Puerto Rico	70.3	57	57	57	66	54	52	Medium · 69
IRONMAN 70.3 Laoag	14 Mar 2027	Laoag, Ilocos Norte, Philippines	70.3	48	47	50	38	54	52	Medium · 72
IRONMAN 70.3 Hengqin	14 Mar 2027	Hengqin, Zhuhai, China	70.3	35	28	23	54	25	60	Medium · 72
Gold Coast T100 Triathlon	20 Mar 2027	Broadwater Parklands, Gold Coast	T100	60	57	77	38	81	52	Medium · 66
IRONMAN 70.3 Doha	20 Mar 2027	Doha, Qatar	70.3	48	47	50	38	54	52	Medium · 69
IRONMAN 70.3 Geelong	21 Mar 2027	Geelong, Victoria, Australia	70.3	48	47	50	38	54	52	Medium · 72
IRONMAN 70.3 Curitiba	21 Mar 2027	Curitiba, Paraná, Brazil	70.3	43	38	30	80	25	52	Medium · 72
IRONMAN 70.3 Oceanside	3 Apr 2027	Oceanside, California, USA	70.3	71	67	92	66	88	52	Medium · 72
IRONMAN 70.3 Vilamoura-Algarve	3 Apr 2027	Vilamoura, Algarve, Portugal	70.3	48	47	50	38	54	52	High · 75
IRONMAN 70.3 Texas	4 Apr 2027	Galveston Island, Texas, USA	70.3	60	57	77	38	81	52	Medium · 72
IRONMAN 70.3 Puerto Varas	4 Apr 2027	Puerto Varas, Chile	70.3	61	62	57	80	54	52	Medium · 69
IRONMAN 70.3 Barranquilla	4 Apr 2027	Barranquilla, Colombia	70.3	48	47	50	40	54	52	Medium · 72
Singapore T100 Triathlon	10 Apr 2027	Marina Bay, Singapore	T100	78	72	84	80	81	87	Medium · 66
IRONMAN 70.3 Los Cabos	11 Apr 2027	Los Cabos, Baja California Sur, Mexico	70.3	52	52	50	52	54	52	Medium · 63
IRONMAN 70.3 San Juan	11 Apr 2027	San Juan, Argentina	70.3	52	52	50	52	54	52	Medium · 63
IRONMAN Penghu	11 Apr 2027	Penghu, Taiwan	Full	46	42	50	38	54	52	Medium · 69
Anfi Challenge Mogán-Gran Canaria	17 Apr 2027	Anfi del Mar, Mogán, Gran Canaria, Spain	T100	48	47	50	38	54	52	Medium · 69
IRONMAN 70.3 Brasília	18 Apr 2027	Brasília, Brazil	70.3	74	72	84	80	81	60	Medium · 72
IRONMAN 70.3 Valencia	18 Apr 2027	Valencia, Spain	70.3	49	47	50	40	54	60	Medium · 69
IRONMAN South Africa	18 Apr 2027	Mossel Bay, South Africa	Full	46	42	50	38	54	52	Medium · 63
IRONMAN Texas	24 Apr 2027	The Woodlands, Texas, USA	Full	71	67	84	80	81	52	Medium · 63
IRONMAN 70.3 Venice-Jesolo	24 Apr 2027	Jesolo, Italy	70.3	60	57	77	38	81	52	Medium · 72
Challenge Taiwan	24 Apr 2027	Taitung, Taiwan	Full	59	57	57	80	54	52	Medium · 69
IRONMAN 70.3 Peru	25 Apr 2027	Lima, Peru	70.3	60	57	77	38	81	52	Medium · 69
IRONMAN 70.3 Western Sydney	2 May 2027	Penrith, New South Wales, Australia	70.3	43	38	30	80	25	52	Medium · 72
IRONMAN 70.3 Gulf Coast	8 May 2027	Panama City Beach, Florida, USA	70.3	61	57	77	38	81	60	High · 75
IRONMAN 70.3 Mallorca	8 May 2027	Alcudia, Mallorca, Spain	70.3	51	43	57	66	52	52	High · 75
Challenge Salou-Costa Daurada	9 May 2027	Salou, Catalonia, Spain	T100	62	57	85	38	88	52	Medium · 66
IRONMAN 70.3 Da Nang	9 May 2027	Da Nang, Vietnam	70.3	48	47	50	38	54	52	Medium · 66
IRONMAN Vietnam	9 May 2027	Da Nang, Vietnam	Full	46	42	50	38	54	52	Medium · 69
IRONMAN Lanzarote	15 May 2027	Puerto del Carmen, Lanzarote, Spain	Full	39	28	50	38	52	52	High · 75
Dorney Lake Triathlon	16 May 2027	Eton Dorney, Berkshire	Sprint	85	95	92	80	88	52	Medium · 72
IRONMAN 70.3 Chattanooga	16 May 2027	Chattanooga, Tennessee, USA	70.3	47	38	50	54	52	60	Medium · 72
IRONMAN Jacksonville	16 May 2027	Jacksonville, Florida	Full	50	47	50	54	54	52	Medium · 63
Challenge Cesenatico	16 May 2027	Cesenatico, Emilia-Romagna, Italy	T100	42	33	50	38	52	52	Medium · 66
Outlaw Half Nottingham	22 May 2027	Holme Pierrepont, Nottingham	70.3	77	72	84	80	81	79	High · 82
The Championship	23 May 2027	x-bionic sphere, Šamorín, Slovakia	T100	75	72	92	80	88	52	Medium · 69
IRONMAN 70.3 Kraichgau	23 May 2027	Bad Schönborn, Kraichgau, Germany	70.3	73	72	84	80	81	52	Medium · 72
IRONMAN 70.3 Northern California	23 May 2027	Redding, California	70.3	62	62	57	82	54	52	Medium · 69
IRONMAN 70.3 Pennsylvania Happy Valley	23 May 2027	State College, Pennsylvania	70.3	61	62	57	80	54	52	Medium · 69
IRONMAN 70.3 St. Pölten	23 May 2027	St. Pölten, Austria	70.3	44	38	30	80	25	60	Medium · 66
IRONMAN 70.3 Aix-en-Provence	23 May 2027	Aix-en-Provence, France	70.3	43	38	30	80	25	52	High · 85
IRONMAN 70.3 Victoria	30 May 2027	Victoria, British Columbia	70.3	61	62	57	80	54	52	Medium · 72
IRONMAN 70.3 Alghero	30 May 2027	Alghero, Sardinia, Italy	70.3	48	47	50	38	54	52	Medium · 69
Challenge Gunsan-Saemangeum	30 May 2027	Bieung Beach, Gunsan, South Korea	70.3	48	47	50	38	54	52	Medium · 69
Ascension Seton Supertri Austin	31 May 2027	Lady Bird Lake, Austin, Texas	Sprint	66	62	57	80	54	87	Medium · 73
supertri Blenheim Palace	5 Jun 2027	Woodstock, Oxfordshire	Sprint	85	95	92	80	88	52	High · 79
IRONMAN 70.3 Hawai`i	5 Jun 2027	Kohala Coast, Hawaii	70.3	48	47	50	38	54	52	Medium · 69
IRONMAN Hamburg	6 Jun 2027	Hamburg, Germany	Full	76	67	84	80	81	87	Medium · 72
IRONMAN 70.3 Tours Metropole - Loire Valley	6 Jun 2027	Tours, France	70.3	64	62	77	54	81	52	Medium · 72
IRONMAN 70.3 Omaha	6 Jun 2027	Omaha, Nebraska	70.3	63	62	57	82	54	60	Medium · 69
IRONMAN 70.3 Durban	6 Jun 2027	Durban, South Africa	70.3	52	47	50	38	54	79	Medium · 72
IRONMAN 70.3 Switzerland	6 Jun 2027	Rapperswil-Jona, Switzerland	70.3	44	38	30	80	25	60	High · 82
IRONMAN 70.3 Bolton	6 Jun 2027	Bolton, Greater Manchester	70.3	43	38	30	80	25	52	Medium · 72
IRONMAN 70.3 Boulder	12 Jun 2027	Boulder, Colorado, USA	70.3	73	72	84	80	81	52	High · 75
Royal Windsor Triathlon	13 Jun 2027	Windsor, Berkshire	Sprint	69	62	77	54	81	87	Medium · 69
IRONMAN 70.3 Eagleman	13 Jun 2027	Cambridge, Maryland, USA	70.3	64	62	77	54	81	52	High · 78
IRONMAN Austria (Klagenfurt)	13 Jun 2027	Klagenfurt am Worthersee, Austria	Full	58	43	57	80	52	87	High · 75
Slateman Triathlon	13 Jun 2027	Llanberis, Snowdonia, Wales	Sprint	55	43	65	80	59	52	Medium · 72
IRONMAN 70.3 Rockford - Illinois	13 Jun 2027	Rockford, Illinois	70.3	53	52	50	54	54	60	Medium · 72
IRONMAN Philippines Davao City	13 Jun 2027	Davao City, Philippines	Full	51	47	50	52	54	60	Medium · 69
IRONMAN 70.3 Davao Philippines	13 Jun 2027	Davao City, Philippines	70.3	49	47	50	38	54	60	Medium · 72
IRONMAN 70.3 Cairns	13 Jun 2027	Palm Cove, Cairns, Queensland, Australia	70.3	48	47	50	38	54	52	Medium · 69
IRONMAN Cairns	13 Jun 2027	Palm Cove, Cairns, Queensland, Australia	Full	46	42	50	38	54	52	Medium · 69
IRONMAN Brazil	13 Jun 2027	Jurerê Internacional, Florianópolis, Brazil	Full	32	20	23	38	25	79	Medium · 72
IRONMAN 70.3 Westfriesland	20 Jun 2027	Westfriesland, Netherlands	70.3	73	72	84	80	81	52	High · 75
Challenge Gdańsk	20 Jun 2027	Brzeźno, Gdańsk, Poland	T100	61	57	77	38	81	60	Medium · 69
IRONMAN 70.3 Mont-Tremblant	20 Jun 2027	Mont-Tremblant, Quebec	70.3	61	62	57	80	54	52	Medium · 69
IRONMAN Frankfurt (European Championship)	27 Jun 2027	Frankfurt, Germany	Full	76	67	84	80	81	87	Medium · 72
IRONMAN Les Sables d'Olonne-Vendee	27 Jun 2027	Les Sables d'Olonne, France	Full	50	47	50	52	54	52	High · 76
IRONMAN 70.3 Elsinore	27 Jun 2027	Helsingor, Denmark	70.3	49	47	50	38	54	60	High · 75
Cholmondeley Castle Triathlon	27 Jun 2027	Malpas, Cheshire	Sprint	44	38	30	80	25	60	Medium · 69
IRONMAN 70.3 Coeur d'Alene	27 Jun 2027	Coeur d'Alene, Idaho	70.3	43	38	30	80	25	52	Medium · 69
Challenge Kaiserwinkl-Walchsee	27 Jun 2027	Walchsee, Tyrol, Austria	T100	43	38	30	80	25	52	Medium · 66
Outlaw Half Holkham	4 Jul 2027	Holkham, Norfolk	70.3	73	72	84	80	81	52	High · 79
IRONMAN Switzerland Thun	4 Jul 2027	Thun, Bernese Oberland, Switzerland	Full	53	43	57	80	52	52	High · 82
DATEV Challenge Roth	4 Jul 2027	Roth, Bavaria, Germany	Full	50	47	50	54	54	52	Medium · 69
IRONMAN 70.3 Muncie	10 Jul 2027	Muncie, Indiana	70.3	75	72	92	80	88	52	Medium · 69
IRONMAN Vitoria-Gasteiz	11 Jul 2027	Vitoria-Gasteiz, Spain	Full	76	67	84	80	81	87	Medium · 69
IRONMAN 70.3 Musselman	11 Jul 2027	Geneva, New York, USA	70.3	73	72	84	80	81	52	Medium · 69
IRONMAN 70.3 Luxembourg	11 Jul 2027	Remich, Luxembourg	70.3	64	62	77	54	81	52	Medium · 72
IRONMAN 70.3 Vitoria-Gasteiz	11 Jul 2027	Vitoria-Gasteiz, Spain	70.3	62	62	57	80	54	60	Medium · 72
IRONMAN 70.3 Jönköping	11 Jul 2027	Jönköping, Sweden	70.3	61	62	57	80	54	52	Medium · 72
IRONMAN 70.3 Swansea	11 Jul 2027	Swansea, Wales	70.3	51	43	57	66	52	52	High · 75
IRONMAN 70.3 Ruidoso New Mexico	11 Jul 2027	Ruidoso, New Mexico	70.3	43	38	30	80	25	52	Medium · 63
IRONMAN 70.3 Ohio	18 Jul 2027	Sandusky, Ohio, USA	70.3	73	72	84	80	81	52	High · 75
Supertri New Jersey	18 Jul 2027	Mercer County Park, New Jersey	Sprint	73	72	84	80	81	52	Medium · 73
Belvoir Castle Triathlon	18 Jul 2027	Grantham, Leicestershire	Sprint	62	62	57	80	54	60	Medium · 72
IRONMAN 70.3 Muskoka	18 Jul 2027	Huntsville, Ontario	70.3	61	62	57	80	54	52	Medium · 63
IRONMAN 70.3 Oregon	18 Jul 2027	Salem, Oregon	70.3	52	52	50	54	54	52	Medium · 69
Outlaw Nottingham	24 Jul 2027	Holme Pierrepont, Nottingham	Full	75	67	84	80	81	79	High · 82
IRONMAN 70.3 Boise	24 Jul 2027	Boise, Idaho	70.3	62	62	57	82	54	52	Medium · 69
SAIL Challenge Québec	25 Jul 2027	Bassin Louise, Québec City, Canada	70.3	67	62	85	52	88	60	Medium · 66
Supertri Toronto	25 Jul 2027	Ontario Place, Toronto	Sprint	63	62	65	80	61	52	Medium · 73
IRONMAN 70.3 Maine	25 Jul 2027	Augusta, Maine, USA	70.3	52	52	50	54	54	52	High · 75
IRONMAN 70.3 Desaru Coast	25 Jul 2027	Desaru, Johor, Malaysia	70.3	48	47	50	40	54	52	Medium · 72
Snowman Triathlon	25 Jul 2027	Snowdonia, Wales	Sprint	43	38	30	80	25	52	Medium · 72
IRONMAN Lake Placid	25 Jul 2027	Lake Placid, New York, USA	Full	41	33	30	80	25	52	Medium · 63
IRONMAN Tallinn	7 Aug 2027	Tallinn, Estonia	Full	60	57	57	80	54	60	Medium · 69
IRONMAN 70.3 Tallinn	8 Aug 2027	Tallinn, Estonia	70.3	73	72	84	80	81	52	High · 75
IRONMAN Canada-Ottawa	8 Aug 2027	Ottawa, Ontario	Full	65	57	85	54	88	60	Medium · 72
IRONMAN 70.3 Rio de Janeiro	8 Aug 2027	Rio de Janeiro, Brazil	70.3	65	57	77	38	81	87	Medium · 66
IRONMAN 70.3 Leipzig	8 Aug 2027	Leipzig, Germany	70.3	61	62	57	80	54	52	Medium · 72
Vancouver T100 Triathlon	14 Aug 2027	Locarno Beach, Vancouver	T100	48	47	50	38	54	52	Medium · 66
IRONMAN Leeds	15 Aug 2027	Leeds, West Yorkshire	Full	41	33	30	80	25	52	Medium · 69
Supertri Chicago	21 Aug 2027	Chicago, Illinois	Sprint	62	62	57	80	54	60	Medium · 69
IRONMAN Kalmar	21 Aug 2027	Kalmar, Sweden	Full	59	52	77	38	81	60	High · 78
London T100 Triathlon Weekend	21 Aug 2027	London	T100	Pending	–	–	–	–	–	Developing · 20
IRONMAN Copenhagen	22 Aug 2027	Copenhagen, Denmark	Full	72	62	84	66	81	87	High · 75
IRONMAN 70.3 Vichy	22 Aug 2027	Vichy, Auvergne, France	70.3	65	62	57	82	54	79	High · 85
Challenge Samarkand	22 Aug 2027	Samarkand, Uzbekistan	70.3	62	62	57	80	54	60	Medium · 69
IRONMAN 70.3 Colombo	22 Aug 2027	Colombo, Sri Lanka	70.3	53	47	50	38	54	87	Medium · 72
IRONMAN Vichy	22 Aug 2027	Vichy, Auvergne, France	Full	44	33	50	54	52	52	High · 79
IRONMAN 70.3 World Championship	28 Aug 2027	Chattanooga, Tennessee	70.3	52	52	50	54	54	52	Medium · 63
IRONMAN 70.3 Duisburg	29 Aug 2027	Duisburg, Germany	70.3	77	72	92	80	88	60	High · 75
Supertri Brighton	29 Aug 2027	Hove Lawns, Brighton and Hove	Sprint	64	62	77	52	81	52	Medium · 59
IRONMAN 70.3 Zell am See-Kaprun	29 Aug 2027	Zell am See, Salzburgerland, Austria	70.3	55	48	57	80	52	52	High · 75
IRONMAN Belgium Knokke-Heist	5 Sept 2027	Knokke-Heist, Belgium	Full	54	47	50	54	54	79	Medium · 69
Challenge Almere-Amsterdam	11 Sept 2027	Almere, Flevoland, Netherlands	Full	71	67	84	80	81	52	Medium · 69
IRONMAN 70.3 Belgrade	12 Sept 2027	Belgrade, Serbia	70.3	74	72	84	80	81	60	Medium · 69
IRONMAN 70.3 Erkner	12 Sept 2027	Erkner, Brandenburg, Germany	70.3	74	72	84	82	81	52	Medium · 72
IRONMAN 70.3 Santa Cruz	12 Sept 2027	Santa Cruz, California, USA	70.3	60	57	77	38	81	52	Medium · 69
IRONMAN Wisconsin	12 Sept 2027	Madison, Wisconsin, USA	Full	53	43	57	80	52	52	Medium · 63
SAIL Challenge Montréal	12 Sept 2027	Olympic Basin, Montréal, Canada	70.3	52	52	50	52	54	52	Medium · 69
IRONMAN France (Nice)	12 Sept 2027	Nice, France	Full	43	28	50	38	52	79	High · 78
IRONMAN 70.3 Sunshine Coast	12 Sept 2027	Mooloolaba, Queensland, Australia	70.3	48	47	50	38	54	52	Medium · 69
IRONMAN 70.3 Weymouth	12 Sept 2027	Weymouth, Dorset	70.3	42	33	50	38	52	52	High · 75
IRONMAN 70.3 Nice	12 Sept 2027	Nice, France	70.3	30	23	23	38	25	52	High · 78
IRONMAN Maryland	18 Sept 2027	Cambridge, Maryland, USA	Full	62	57	77	54	81	52	High · 78
IRONMAN Italy Emilia-Romagna	18 Sept 2027	Cervia, Emilia-Romagna, Italy	Full	58	52	77	38	81	52	High · 75
Marbella T100 Triathlon	18 Sept 2027	Marbella, Málaga	T100	30	23	23	38	25	52	Medium · 63
IRONMAN 70.3 Italy Emilia-Romagna	19 Sept 2027	Cervia, Emilia-Romagna, Italy	70.3	60	57	77	38	81	52	High · 75
IRONMAN 70.3 São Paulo	19 Sept 2027	São Paulo, Brazil	70.3	52	52	50	52	54	52	Medium · 63
Supertri Long Beach	19 Sept 2027	Long Beach, California	Sprint	52	52	50	52	54	52	Medium · 63
IRONMAN Wales	19 Sept 2027	Tenby, Pembrokeshire	Full	32	20	23	38	25	79	High · 75
Hever Castle Triathlon	25 Sept 2027	Hever, Kent	Sprint	56	48	57	82	52	60	Medium · 72
IRONMAN 70.3 Cozumel	26 Sept 2027	Cozumel, Quintana Roo, Mexico	70.3	65	62	77	52	81	60	Medium · 66
IRONMAN 70.3 Mamaia Constanta	26 Sept 2027	Mamaia, Constanța, Romania	70.3	60	57	77	38	81	52	Medium · 72
Sandman Triathlon	26 Sept 2027	Newborough, Anglesey, Wales	Sprint	30	23	23	38	25	52	Medium · 72
Challenge Vieux Boucau	9 Oct 2027	Vieux-Boucau-les-Bains, Landes, France	T100	73	72	84	80	81	52	Medium · 66
Challenge Peguera-Mallorca	16 Oct 2027	Peguera, Mallorca, Spain	T100	30	23	23	38	25	52	Medium · 66

How the Index works

Course evidence

Official course sources, verification dates, swim setting, terrain and known gaps. Course shapes and climbing come from official GPX files where a race publishes one.

Athlete fit

Your goal, experience, weakest discipline, available hours and chosen distance change the ranking. Fit is modelled; observed results are shown separately once samples are large enough.

Honest uncertainty

Weather and courses change. Low-confidence data is labelled, and every card links to its source-backed guide.

Explore 70.3 evidence

Inspect the source-backed IRONMAN 70.3 Boulder guide and IRONMAN 70.3 Ohio guide.

What Unbroken is building toward

From race fit to preparation patterns that actually activate athletes.

“Athletes with eight hours per week, a weak swim and a first-time finishing goal tend to commit to these races, and these are the preparation patterns associated with successful activation.”

That is the standard we are building toward. Today, athlete fit is modelled from your stated constraints and verified course evidence. Observed cohort findings will only be published when sample sizes are sufficient, small groups are suppressed and modelled signals remain clearly separated from real behaviour. No individual athlete is exposed.

Choose a race that fits your life,not your ego.

Your profile & filters

Forthcoming races

Your strongest matches

supertri Blenheim Palace

Singapore T100 Triathlon

IRONMAN Hamburg

How the Index works

From race fit to preparation patterns that actually activate athletes.

Choose a race that fits your life,
not your ego.