Monster Triathlon 2025

The Monster returns in 2025 bigger and better than before! Spanning 7 days, this year's event comprises of a 5km swim in Loch Ness before 5 days cycling and finishes with a 50km ultra-marathon on the last day along the Thames.

Entry Options

Monster Triathlon
Monster Triathlon Plus
Monster Plus entries benefit from all the support of General Entries, with additional benefits including: Solo occupancy upgrade, daily massage, premium care package, pre-event bike transfer (London to Loch Ness) and an official Monster training t-shirt.
Monster Triathlon Group Entry
Sign up as a team of 4 and save £150 per person on the standard entry price.
Monster Run
Monster Swim

Refunds/Transfers/Instalments

Refunds

Entry fees are non-refundable, unless the event is cancelled by the organiser.


You can manage your entries in the section of your Racer Dashboard.


Instalment Plan

  • You may pay in equal instalments up to a either a maximum set by the organizer or monthly up to one month before the event, whichever is less.
  • There is an additional fee of 1% + £0.50 (inc VAT) for each instalment.
  • You are responsible for ensuring payments are made, missing payments may mean removal from the event and loss of any monies paid to date.
  • For more information on instalment plans see here.