Despite what the name may imply, duathlons work in 3 stages, just like triathlons, however this time you enter just two sports. Run, Bike, Run.

A duathlon is great for those looking to move into multi-sport racing, who may not be comfortable with an open water swim, for triathletes who cannot get in the open water over winter and for athletes who excel at running and cycling like our ambassador Claire Steels, who achieved world champion for her ages group.

Duathlon distances

Similar to it’s counterpart triathlon, duathlons come in multiple distances to suit all competitors from beginners to seasoned athletes.




5 km run, 20 km bike and 2.5 km run.


10 km run, 40 km bike and 5 km run.


10 km run, 150 km bike and 30 km run.

Duathlon races 2017

Duathlon is becoming an increasingly popular sport and in 2017 there are approximately 120 duathlons taking place in the UK.

Events tend to sell out far in advance, so if you’ve set yourself the goal of racing in 2017, do your research and get booked in as soon as possible. It will help you to have a target date to devise the best training and ensure you’re not disappointed if your event becomes fully booked. You can find a list of duathlon events here at find a race.

Duathlon Training

If you can run and you can cycle, you are more than capable of completing a duathlon.

When training for this multisport race, whilst it’s great to focus on the individual sports, you need to get familiar with training one sport after another. This is called a brick session. Brick sessions prepare you for what it feels like to run after having jelly legs from cycling or visa versa, they are also great for building endurance and testing out your transitions, which can be tricky on race day if you are new and nervous.

The first run of any duathlon is where you’re going to be the least fatigued, so you’re going to want to set off at your fast pace, whilst retaining energy for the bike and second run ahead. This is particularly important to practice, as you don’t want to use all your energy speeding off in the first leg, and have your other transitions suffer. If you can’t get outside and train, you can always complete a brick session at the gym, so the weather’s really no excuse.

Duathlon Kit

One of the bonuses of duathlon is that you don’t need as much kit as you do for triathlon events as there’s no call for a wetsuit - no one's getting wet! When it comes to duathlon clothing, the jury's out. Some people will argue that cycling shorts and a bib are fine, whilst others will suggest this is like running in a nappy and terribly awkward. Those with a tougher bum or padded seat may opt for a regular running short - which typically will be okay for shorter distances. The most popular option is to go for a tri suit or tri shorts and top. The tri suit is designed with a lighter chamois making a comfier ride, but without distracting your run. You can view our Sundried Tri Suits crafted with the finest italian fabrics for the ultimate comfort here via our triathlon shop.

When it comes to footwear, it’s best to wear what you’ve been practicing in. In order to limit your time in transition, if you have a pair of trainers you can bike and run in, you may save time, however some people will want to wear their cleats in order to pick up the most speed on the ride. If so ensure you have speed laces and socks which are suited to both trainers - or go sockless. Personally I would never risk the blisters of this, but I know athletes who never wear socks - usually they have come from tri, go figure!

Once you get a taste for a multi-sport discipline, we guarantee you’ll be wanting to check out our guide to triathlon.

Good luck on your run, bike, run.