The UK's Favourite Long Distance Triathlon Series

Looking to take part in an award-winning long distance triathlon event that won’t break the bank? Well you’ve come to the right place. Welcome to the Outlaw Triathlon Series!

Here at OSB Events, we’re passionate about delivering world class events that enable individuals of all ability levels to achieve their goals. Since our first event back in 2010, thousands of triathletes, from first timers to world champions, have experienced the magic of the Outlaw finish line.

Doing a long distance triathlon is a pretty big deal and we think everyone deserves an amazing race day experience that’s worthy of their inspirational training journey. From friendly and supportive volunteers to delicious post-race grub, we put the participant experience at the heart of everything we do. We also make sure your friends and family are well looked after too!

Why Take Part?


Here at OSB Events, we're proud to say we put the participant experience at the heart of everything we do. It’s why 220 Triathlon have voted Outlaw their ‘Event of the Year’ in six out of the last seven years.


We don’t think you should have to re-mortgage your house to achieve your triathlon goals, so we make sure we price our events fairly…without compromising on quality. We also offer a payment plan and deferral scheme to make life easier.


From first-timers to world champions, everyone’s made to feel like they’re the star of the show at an Outlaw event. We also make sure your friends and family have an epic day out too!

Select Your Event

Sun 19th May 2019 (SOLD OUT)

Sun 28th July 2019 (SOLD OUT)

Sun 22nd September 2019

What You Receive

World class organisation

Delivered by triathletes for triathletes

On course support

From feed stations to mechanics, we've got you covered

Finishers’ technical t-shirt

So you can show off your amazing achievement

Free personal event photos

Say hello to your new profile picture!

Premium finishers’ medal

It’s the least you deserve after your heroic efforts

Outlaw sports bottle

Courtesy of High-5 Nutrition

Free post-race massage

To help breathe some life back into your tired legs

In-depth results analysis

With the use of live tracking from our state of the art website.

Free post-race meal

A tasty and nutritious meal post-race always goes down a treat