When you purchase through links on our site, we may earn an affiliate commission.

Home / Training / How to go from triathlon to duathlon

How to go from triathlon to duathlon

Wondering how best to make the move from three sports to two? And how should you pace yourself on each section? What should you even wear?! Here are our essential tips and tricks to racing duathlon.

Two cyclists competing in a duathlon on bikes, wearing tri-suits and arm warmers
Basing your kit around a tri-suit and adding layers and accessories is a good call

BUILD THOSE BRICKS

The key to duathlon training is a weekly or fortnightly brick session. This can be: run-to-bike, bike-to-run or run/bike/run. The run/bike/run option is ideal physiological training to simulate the fatigue of biking after a fast first run and then running off a hard bike ride. It also means you can practise transitions. These sessions can be done outdoors around a measured run and bike circuit, using a run route while you bike on a turbo or even at a gym – jumping between a treadmill and stationary bike.

Sub-1hr session: Reverse brick

TRAIN WHEN TIRED

Work on strength for the second run by doing your quality runs on tired legs after a few days of hard training. In the race, have faith that the pain will ease, focus on form and find a rhythm. Everyone will be hurting, but tough it out.

3 essential duathlon training sessions

Free 4 week duathlon training plan

Free 8-week standard distance duathlon training plan

PACE THE FIRST RUN

The big difference between triathlon and duathlon is, of course, the first segment of the race. Like triathletes, duathletes take a very fast start when racing. The only difference is that running is much harder on the muscles than swimming. If you run high above your calculated race pace in the first run, you’ll find yourself worthless at the start of the bike and the second run will be extremely hard. So keep in mind not to go too fast during the first run, or you’ll lose a lot more time than you could imagine.

CONSIDER CLOTHING

Remember you’re going to be running and cycling so it’s worth investing in clothing you can do both in comfortably; an all-in-one tri-suit isn’t always necessary but tri-specific shorts are a great idea. Duathlons are often in the colder months but you may get warm on the first run, cool down quickly on the bike then heat up again on the second run. Try arm warmers and a cycle jersey or gilet over a tri-top with gloves in the back pocket so you can add and remove layers quickly. Having a second pair of trainers and socks in T2 if the race is wet is also something to look forward to coming off the bike!

TAKE ADVANTAGE OF DRAFTING WHEN OFF-ROAD

Unlike in age-group tri or road duathlons, a little-known rule is that drafting is allowed in most off-road duathlon events. So utilise the long straight sections where this’ll be an advantage. And expect to feel like you’re running the final leg with a bear on your back!

FUEL ON THE BIKE

Use the bike to take on any additional energy or water, and only start to really push things on the second run when you know how to pace it through to the finish.

LOOSEN UP

Your body will often rebel on the second run so beat this by loosening your hips and back at the end of the bike – getting out of the saddle is a great way to do this.

How to train for a duathlon

Duathlon: 12 do’s and don’ts

Duathlon race day: 12 tips for success

Top duathlon age grouper Samuel Pictor on training and competing

Profile image of 220 Triathlon Team 220 Triathlon Team Journalists, reviewers, coaches and athletes

About

The 220 Triathlon team is made up of vastly experienced athletes, sports journalists, kit reviewers and coaches. In short, what we don't know about multisport frankly isn't worth knowing! Saying that, we love expanding our sporting knowledge and increasing our expertise in this phenomenal sport.