1.5 km Lake Swim / 44km Road Bike / 13km Trail Run


Unfortunately we have had to cancel this event. Natural England have decided to ban 'large' events on Buttermere Lake. This is due to the potential spread of invasive non-native plant species from people swimming.


We really apologise for this as this was a fantastic event, encouraging people to be active in this beautiful environment. We have always informed people re the potential spread of invasive non-native species & implemented the necessary bio security measures. Such events are a great way to inform people of this potential threat unlike the 'non regulated' approach for the majority of people throughout the year.


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Spectators on the trail.
Stunning trails
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Crummock trails
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Passing Low Ling Crag
Exiting the swim
Lakes & Mountains
Ready for the start
Sunrise over Buttermere
Looking down Buttermere to Fleetwith
Crystal clear water
Looking across to Grasmoor
BT Bike 1_0011.JPG
Top of Honister Pass
Olympic Gold Medalist Ed Clancy
Lakeshore Transition Area

A Classic Combination of Lakes and Mountains


Swim Buttermere Lake, cycle up the challenging gradients of Whinlatter and Honister passes, run the trails around the beautiful shores of Crummock Water. This triathlon is possibly the most scenic in Britain, set amidst the stunning backdrop of the Lake District mountains in the iconic location of Buttermere. 


Venue:  Buttermere Village, Cumbria, CA13 9UZ.               Start Time:  0830 


Registration:  Between 0630-0800  (Numbers will be issued at registration)

Registration will be based from Croft House Farm Cafe.

The event is to be held on the same weekend as the Buttermere Open Water Swim. Details HERE


Entry Fees

Individual:                                                            Relay Team of Three:

£48 British Triathlon members                         £75 per team of three non  members   

£53 Non BTF                                                         British Triathlon members (£5 discount per BTF member)         


Event Terms & Conditions HERE.                     (Prices include contribution to The National Tru st)      

Included: Professionally run event, qualified & experienced personnel, qualified medical support, electronic chip timing, online registration, fully marked routes, commemorative race t-shirt (additional optional fee) & finishers medal, unique event branded swim cap refreshments at finish, limited free event parking, (subject to ground conditions).

Route Description

1.5k Open Water Swim: Based from the north western shore, the swim will be in Buttermere Lake. With it's crystal clear water this is one of the cleanest lakes in the country, surrounded by a spectacular backdrop of dramatic fells.  Cut off time: 1 Hour
All competitors are to wear a full length swimming wetsuit, there are no exceptions to
this rule.

44k Road Cycle: A classic route taking riders over the climbs of Honister and Whinlatter passes. Turning right out of Buttermere, the route passes through Gatesgarth and onto the steep ascent of Honister Pass. Starting with a gradual incline the route winds it's way up through this dramatic valley flanked by the imposing sides of Fleetwith Pike. The second section of this climb is very steep with gradients of up to 25%, finishing with 'The Wall' at the top of the pass. Take in some amazing views & marvel at the old mine workings built into the hillsides before a steep & technical descent to Seatoller.

The route then winds through the spectacular Borrowdale Valley, turning left at Grange, then following the western lake road at the base of Catbells. Next up is the  forested climb of Whinlatter Pass, steep in places but more gradual than the ascent of Honister.


This is followed by a long sweeping descent to Lorton. You then head along to Buttermere Village via a stunning route along the shore of Crummock Water & back to the transition at Buttermere lakeshore.  

Along the western shore of Derwent Water

13k Trail Run: An incredible circular route around the shores of Crummock Water. With the mighty Grassmoor on the east and the fells of Mellbreak on the west, it has unparalleled views from either side. This is a relatively flat route with a great combination of off road running terrain. Heading out of T2 at Buttermere lakeshore, passing the spectacular waterfall of Sourmilk Gill, the route follows the western shoreline at the base of Melbreak.

This initial section of the route is quite technical with various bogs & rocky sections to negotiate. Reaching Lanthwaite Woods at the far end of Crummock Water the terrain becomes firmer. A gradual climb leads into Rannerdale Valley before sweeping around the base of Rannerdale Knotts.


A final 'Sting in the Tail' awaits in the form of a short but steep ascent to Hause Point. Savour the views on the grassy descent across the head of the valley before returning through Buttermere village & to the finish at the lakeshore field.

Competitor Feedback:

Great day out again, thanks. Excellent race in beautiful place and great organisation.You timed the weather window to perfection Ian blakebrough

Just wanted to say well done to everyone involved in putting on a fantastic event. It was my first Triathlon and I suspect none will ever measure up to the great course, scenery and day that I had Loved every minute from start to weary finish. Looking forward to next year already. Thanks!!
Phil Ward

Just a big thank once again to you and all who helped out last weekend at the 7th Buttermere triathlon. For me this event provides the perfect combination of personal challenge and stunning Lakeland scenery. I'll certainly be back next year and training towards achieving a PB next time!
Best wishes Phil Keegan

Hi there, Thanks so much for an amazing weekend! It was my first Olympic distance tri and my second ever tri. The atmosphere was wonderfully welcoming and friendly. Thank you so much, Rhian


I just wanted to say a quick thank you to your team for a fantastic Buttermere triathlon, it is the first time I have competed in a triathlon but thoroughly enjoyed it and fear I was spoilt by the excellent weather and absolutely stunning scenery" Simon Powell


"Thank you for holding such a wonderful event yesterday at Buttermere. The swim was stunning, cycle challenging and the run just plain evil! Great event, very challenging but thoroughly enjoyable" Rob Massey


"I competed at your Buttermere triathlon on Saturday. Although I made sure I said thanks at the end, just would like to say in writing how much I enjoyed the event. A real back to basics, down to earth event was a refreshing change. The course was incredible, I loved it - though probably the toughest I've raced. The jaw dropping scenery made it all go by that bit quicker! The people (competitors and event staff) were all so friendly which makes such a difference to any event - they were a credit to you. I had a great day" Andrew Whiteley 


"I just wanted to drop you a note to say thanks for yesterday's tri. I did it a couple of years ago and loved it so came back again yesterday. The atmosphere and organisation was great. It is so nice to have non commercial triathlons. You even managed to arrange the weather. I'll definitely be back next year" Kate Baldwin


"Thanks for a great day today :) wonderful and challenging event! I'll be back again next year! :) "Sarah Gerrish

Entries: Due to the special natural environment of Buttermere the event has a 200 limit. Minimum entry age is 18 years old. The event will be run under current British Triathlon rules. There is limited availability so early entry is advisable! Open to solo and relays of three. 

Car Sharing: PLEASE TRY TO CAR SHARE WHERE POSSIBLE AS PARKING IS LIMITED. As well as reducing the carbon footprint of the event & saving you petrol money, it will ease the parking process for us at the race.


Previous Results:

2014 Results HERE.

2015 Results HERE

2016 Results HERE

2017 Results Here

2018 Results HERE

For accommodation & other local information visit www.keswick.org


Swimming in the Lakes

Check out the 2016 Event Video HERE