The Lakesman - Half

Sunday 15th June 2025

Welcome to the Lakesman Half Triathlon 2025 – the ultimate test of endurance set against the backdrop of Cumbria’s breathtaking natural beauty. Designed to support you for the event weekend, the athlete guide is packed with essential timings, route details, rules and regulations, and a wealth of other valuable information for entrants and spectators. Whether you’re a first-timer or a seasoned triathlete, this guide is your key to navigating the race and enhancing your Lakesman experience. Download it today and let’s prepare for a thrilling challenge together!

The 2025 athlete guide will be available in Spring but please see the links below to last years guide which may answer some of your questions

1.9KM (1.2M)

Derwentwater is generally regarded as the areas most scenic lake and swimming in its crystal clear waters is something all triathlete’s should get the chance to experience. A single lap swim will take in exactly half of the full distance course.

A mass start beginning slightly further South down the lake athletes will follow the full course orange buoys until they reach a double height Yellow buoy after approx 430 meters. At this point half athletes will turn right. A further two double height yellow buoys appear at which point athletes will again turn right and begin to follow the full course orange buoys again until the finish.

The views from the lake are amazing so spare a second during the race to take a look. After the swim there is a short carpeted spectator lined run to transition, which is adjacent to theatre by the lake.


We believe that this is a simply superb route for a 56 mile triathlon bike course.

Athletes will take in several miles of well-known local time trial routes as well as more undulating sections, all on generally excellent road surfaces. Whilst not flat, we have minimised the elevation as far as possible and at 2500ft isn’t majorly arduous 

21.1km (13.1M)
4 x 3.1m

We feel this multi lap half marathon course has everything, breath taking views, a virtually flat profile and the potential for great spectator support.

Race HQ and transition

All functions for the race weekend registration will be based at Keswick Rugby Club along with Event HQ, Medical tents, Finish Line and Hospitality area. Transition and racking will be erected in the car park adjacent to Crow Park and the Theatre by the Lake.

Athletes are advised that the exact location of each function will be displayed by way of map closer to the event date.