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Triathlons in South West in August 2025

Find triathlons near me in South West in August 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Now twice-yearly due to popularity, the 70.3 Tri has a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.
  • Sun 31 Aug
  • £140
  • Sun 31 Aug
  • £140
Lifton, Devon, UK

Roadford Lake Triathlon | Middle Distance

Now twice-yearly due to popularity, the 70.3 Tri has a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.

  • Chip timing
  • Enter online
  • Age 18 & over
  • 1.9 km lake swimming
  • 93 km road cycling
  • 21 km road running
Brand new to the popular Roadford Lake Tri, the Iron Tri has a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.
  • Sun 31 Aug
  • £250
  • Sun 31 Aug
  • £250
Lifton, Devon, UK

Roadford Lake Triathlon | Iron Distance

Brand new to the popular Roadford Lake Tri, the Iron Tri has a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.

  • Chip timing
  • Enter online
  • Age 18 & over
  • 3.8 km lake swimming
  • 185 km road cycling
  • 42 km road running
Now twice-yearly due to popularity, the Standard Tri is a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.
  • Sun 31 Aug
  • £82
  • Sun 31 Aug
  • £82
Lifton, Devon, UK

Roadford Lake Triathlon Autumn | Standard

Now twice-yearly due to popularity, the Standard Tri is a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.

  • Chip timing
  • Enter online
  • Age 17 & over
  • 1500 km lake swimming
  • 46 km road cycling
  • 10 km trail running
Now twice-yearly due to popularity, the Sprint Tri is a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.
  • Sun 31 Aug
  • £68-£75
  • Sun 31 Aug
  • £68-£75
Lifton, Devon, UK

Roadford Lake Triathlon Autumn | Sprint

Now twice-yearly due to popularity, the Sprint Tri is a superb swimming venue with quiet rolling roads for the bike course and a cracking run too. Plus there's lakeside camping available too.

  • Chip timing
  • Enter online
  • Age 15 & over
  • 750 m lake swimming
  • 20 km road cycling
  • 5 km trail running
  • Sun 3 Aug
Bristol, Gloucestershire, UK

Sri Chinmoy Tri Club's SBR-Mini Duathlon or Triathlon | Triathlon

  • 200 m pool swimming
  • 10 km road cycling
  • 3 km trail running
  • Wed 13 Aug
Cromhall, Gloucestershire, UK

South West Maritime Triathlon Series - Race 4 | Sprint Triathlon

  • 750 m lake swimming
  • 18 km road cycling
  • 5 km road running
  • Wed 20 Aug
Swindon, Wiltshire, UK

Cotswolds Lake 62 Evening Triathlon Series - Race 4 | Triathlon

  • 400 m lake swimming
  • 12.5 km road cycling
  • 4.5 km trail running

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