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Triathlon Atlas

Half distance · 11 July 2027

IRONMAN 70.3 Swansea

Swansea Bay, United Kingdom

What is known about this race

Every figure below was read from the organiser's own pages. A field nobody publishes is shown as empty, not filled in with something likely.

Swansea Bay, United Kingdom

Read from the organiser

Distance
Half distance (70.3)
Date
11 Jul 2027
Registration
Open
Swim venue
Harbour
Average water temperature
16 °C
Bike profile
Hilly
Run profile
Flat
High air temperature
24 °C
Low air temperature
12 °C

Nobody publishes this

Bike elevation gain
not published
Run elevation gain
not published
Overall cut-off
not published
World championship slots
not published
Entry fee
not published
Altitude
not published
First edition
not published
Swim start
not published

These stay empty rather than being filled with a plausible value. A wrong elevation or cut-off would be worse than none.

Read on 22 Sept 2026 · source page

How the day is laid out

The swim is held in a harbour. At an average of 16 °C this is cold water. A wetsuit will be worn by almost everyone who is allowed one, and a swim shortened or cancelled for conditions is a real possibility at this end of the range.

The bike leg is labelled hilly and runs over 5 loops. No elevation figure is published for it on the organiser's pages, so this site holds none.

The run is labelled flat.

A hilly bike ahead of a flat run puts the day's decision early: what you spend on the climbs is what the run will not have.

Expect air between 12 °C and 24 °C, the range the organiser publishes for 11 July 2027. A spread of 12 degrees across the day matters as much as the peak, because what you wear at the swim exit is rarely what you want at the far end of the bike.

Against the calendar

Where this race sits among the others

Ranks are computed across every published race of the same distance. An organiser's own page only ever describes one race, so this comparison is the part it cannot give you.

  • Average water temperature

    16 °C · median 21 °C

    The 2nd coldest of the 101 half-distance races that publish one.

  • High air temperature

    24 °C · median 26 °C

    The 38th coolest of the 111 half-distance races that publish one.

12

races of this distance pair a hilly bike with a flat run, out of 111. 24 share the bike profile alone.

16

races across every distance fall in July, out of 159.

53

races are held in Europe. 6 of them in the same month as this one.

Computed from the 159 races held here, read on 22 Sept 2026

Races of the same distance in the same region

RaceDateCountryDistance
IRONMAN 70.3 World Championship Nice12 Sept 2026FRHalf distance
IRONMAN 70.3 Versailles Versailles11 Oct 2026FRHalf distance
IRONMAN 70.3 Portugal-Cascais Cascais17 Oct 2026PTHalf distance
IRONMAN 70.3 Poreč Porec18 Oct 2026HRHalf distance
IRONMAN 70.3 Málaga Málaga18 Oct 2026ESHalf distance
IRONMAN 70.3 Costa Navarino, Peloponnese, Greece Peloponnese25 Oct 2026GRHalf distance
IRONMAN 70.3 Türkiye Belek1 Nov 2026TRHalf distance
IRONMAN 70.3 Vilamoura-Algarve Vilamoura3 Apr 2027PTHalf distance
IRONMAN 70.3 Valencia Valencia18 Apr 2027ESHalf distance
IRONMAN 70.3 Venice-Jesolo Jesolo24 Apr 2027ITHalf distance
IRONMAN 70.3 Alcúdia-Mallorca Alcúdia8 May 2027ESHalf distance
IRONMAN 70.3 Aix-en-Provence Aix en Provence23 May 2027FRHalf distance
IRONMAN 70.3 Kraichgau Kraichgau23 May 2027DEHalf distance
IRONMAN 70.3 St. Pölten St. Polten23 May 2027ATHalf distance
IRONMAN 70.3 Alghero Alghero30 May 2027ITHalf distance
IRONMAN 70.3 Tours Metropole - Loire Valley Tours6 Jun 2027FRHalf distance
IRONMAN 70.3 Switzerland Rapperswil-Jona6 Jun 2027CHHalf distance
IRONMAN 70.3 Bolton Bolton6 Jun 2027GBHalf distance
IRONMAN 70.3 Westfriesland Hoorn20 Jun 2027NLHalf distance
IRONMAN 70.3 Elsinore Elsinore27 Jun 2027DKHalf distance
IRONMAN 70.3 Swansea Swansea Bay11 Jul 2027GBHalf distance
IRONMAN 70.3 Jonkoping Jonkoping11 Jul 2027SEHalf distance
IRONMAN 70.3 Luxembourg Moselle11 Jul 2027LUHalf distance
IRONMAN 70.3 Vitoria-Gasteiz Vitoria-Gasteiz11 Jul 2027ESHalf distance
IRONMAN 70.3 Tallinn Tallinn8 Aug 2027EEHalf distance
IRONMAN 70.3 Leipzig Leipzig8 Aug 2027DEHalf distance
IRONMAN 70.3 Vichy Vichy22 Aug 2027FRHalf distance
IRONMAN 70.3 Zell am See-Kaprun Zell am See29 Aug 2027ATHalf distance
IRONMAN 70.3 Duisburg Duisburg29 Aug 2027DEHalf distance
IRONMAN 70.3 Nice Nice12 Sept 2027FRHalf distance

Read from the organiser’s own pages on 22 Sept 2026

Where these figures come from

Read from the organiser's listing, race page and course page on 22 September 2026. Dates, profiles and temperatures are revised between editions. If a value no longer matches the official page, say so and it will be corrected.

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