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Iron Distance Triathlons Found

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Iron Distance Triathlons 2025 - 2026

Iron Distance Triathlons: Distances

  • Swim - 2.4 miles (3.8 km)
  • Bike - 112 miles (180 km)
  • Run 26.2 mile (42.2 km, ie a Marathon)


Completing an iron distance event is the ultimate challenge for many a triathlete. ‘Going long’ as it’s known is a serious commitment but the feeling when you complete that 140.6 miles makes it all worthwhile!

Any long course triathlon is a gruelling challenge but finding it shouldn’t be so whether you are after a small local race or an international triathlon event, you will find it on Find a Race. Used by tens of thousands of triathletes the Find a Race event calendar lists Ironman and iron distance races around the UK and across the world. Check out our comprehensive 2025 - 2026 Iron Distance race calendar below: and use the “Refine” button to find your perfect race.

Iron Distance Events 2025 - 2026

🚀Boosted

London T100 Triathlon 2025

London
09 Aug 25 - 10 Aug 25
£108.00 - £420.00

Slateman Triathlon & Duathlon

Caernarfon, Gwynedd
08 Jun 25
£85.99 - £399.99

The Cardiff Triathlon & Duathlon

Cardiff
22 Jun 25
£78.99 - £229.99

UK Ultimate Triathlon 2025

Ellesmere, Shropshire
29 Jun 25
£105.00 - £349.00
5.0

The Northumbrian Full & Half Iron-Distance Triathlon

Hexham, Northumberland
29 Jun 25
£215.00 - £350.00
5.0

ATW Odyssey Triathlon

Riverside Park, Regatta Meadow, St Neots, Cambridgeshire, PE19 7AB
05 Jul 25
£164.30 - £312.70

Belvoir Castle Triathlon & Mulitsport

Grantham, Belvoir, Leicestershire
19 Jul 25 - 20 Jul 25
£35.00 - £245.00
5.0

Offer

10% OFF

TriBourne Festival of Endurance

Eastbourne, East Sussex
20 Jul 25
£45.00 - £396.00

ROADFORD LAKE TRIATHLON AUTUMN

Roadford Lake, Broadwoodwidger, Lifton, PL16 0RL
31 Aug 25
£60.42 - £265.00

Hever Castle Triathlon & Multisport

Edenbridge, Kent
27 Sep 25 - 28 Sep 25
£35.00 - £245.00

Offer

10% OFF

Showing 1-9 of 9 results

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