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Castle Triathlon Series

£10 off a Castle Triathlon Series Race entry

Formed in 2009, the Castle Triathlon Series has swiftly established itself as the UK’s largest triathlon series.

With 7,000 entrants expected at their Hever Castle event in September this year it is not just the second biggest race in the UK triathlon calendar but it also secured the title of the world’s largest children’s triathlon in 2014.

  1. This offer is valid until 1st September 2019.
  2. This offer can be used in conjunction with the current 15% discount.
  3. For full terms of use please click here
  4. This offer can be withdrawn at any time.