How to start tri training as a Runner
The second in our series with Pro Triathlete turned Coach, Colin from APB coaching shares everything you need to know if you are thinking of getting into Triathlon from training to equipment. This is the ultimate beginner guide to all things Tri!
For runners getting into triathlon you´ll be pleased to know that whilst you may have to compromise the amount of running you do to fit in the swim and bike this doesn´t necessarily mean your run fitness will take a hit - if anything it will improve. Try to view triathlon as one sport not three, so the aerobic and strength gains from the swim and the bike will spill over to your running.
If you currently run 3-5 x per week you may reduce this to 2 runs initially while you build up the swim and bike element. Try to view intensity as a whole over the week, so if you are training 6 x per week now, 2 more intense sessions over the week across all 3 disciplines will be enough. After all triathlon is a strength aerobic sport so c80-90% of the training needs to be at a conversational pace to build the engine!
To save time you can group sessions, such as a 30min easy run into a 30min swim. If swimming is new to you, frequency is important so an approach of 3 x 30min a week can work well. Keep repetitions short and focus on one aspect of the stroke at a time. No matter how big your engine, efficiency in the water is key, and whilst swimming will be the smallest proportion of the race, do not underestimate the energy cost and knock-on effect to bike and run!
Since swimming and biking are non-impact they off the runner a far less risk of injury and therefore a more consistent training regime. In order to unleash your running, really focus on getting strong in the swim and on the bike and you´ll be amazed how well you can run off little run volume!
What equipment do I need?
- Get fitted for a Bike before you buy
Before you think about buying a bike get a bike fit first! A bike fit is a great start to ensure you are in the correct position, using the right muscle groups, and improving your comfort. The fit will dictate which bike size and brands are best suited to you. Whilst this is an upfront cost it will save you in the long run! The difference in speed from an entry-level road or time trial bike to a top-end one is marginal, but the difference in your position on the bike is huge since c80% of the drag into the wind is you! Improving your posture and frontal area on the bike is free & likely the best return on investment when it comes to speed.
- Find a Shoe that works for you!
As for the run, running shoes are individual so try to avoid the ´marketing´ as best you can. If you are comfy in your current shoes with no niggles we would advise to stick for now. Most shoes can handle c500-700km of wear before you´ll need a new pair so getting a couple of the same pairs can work well to rotate the wear rate as you go. Comfort and feeling are key here. If you are really unsure and have past injuries it would be worth getting a physical assessment with a physiotherapist to check what shoe is most suitable for you. As for a watch, an entry-level Garmin to measure pace will do the job here!
- Pull buoy & paddles are your new best friends
As for swimming, a pull buoy and small paddles are a good start. The pull buoy can help your body position and breathing so you can isolate other parts of the stroke and can help mimic the position you´ll be in a wetsuit for when you are racing. Paddles will enhance your feel & awareness in the water and over time your power in it. Start with small paddles, to begin with so they do not impact your cadence or aggravate your shoulders. If you are a beginner swimmer it would be worth investing upfront in some lessons to improve awareness in the water or ask a friend to film you above and below the water so you can start focusing on one aspect of the stroke at a time. Turning the unconsciously incompetent - conscious!
Which Race should I sign up for?
For your first triathlon, pick a short distance at first. Triathlon can be time-consuming so starting with a Sprint or an Olympic distance is a good test to see if you can fit the training into your schedule sustainably before approaching the longer distances. We also advise picking a local race to start with, this takes out the logistics, cost, and stress of travel leading up to the event.
Getting started in triathlon doesn't have to be overwhelming or expensive. By focusing on the essentials and approaching your training as a cohesive whole, you can set yourself up for success in this rewarding sport. Whether you're a seasoned runner or completely new to multi-sport training, these tips will help you navigate the journey ahead. If you have any questions or need further guidance, don't hesitate to reach out to Colin—he's here to help you every step of the way.
Latest articles
The Challenges Women Face in Running and How It Impacts Participation
Running is often lauded as one of the most accessible sports—just lace up your trainers and go. However, for many women, the barriers to participation go far beyond the logistical. While safety concerns are frequently highlighted, deeper systemic issues like access to the sport and unequal treatment are also preventing more women from running. It was a topic keenly discussed at our In Her Stride panel held at the end of November, with key members of the female running community including Sophie Power, Tasha Thompson, Rehana Mawani and Emily Shane.
Running is often lauded as one of the most accessible sports—just lace up your trainers and go. However, for many women, the barriers to participation go far beyond the logistical. While safety concerns are frequently highlighted, deeper systemic issues like access to the sport and unequal treatment are also preventing more women from running. It was a topic keenly discussed at our In Her Stride panel held at the end of November, with key members of the female running community including Sophie Power, Tasha Thompson, Rehana Mawani and Emily Shane.
Before we kick things off however, we should highlight that female participation in running events is growing, and this is a great thing! According to data from Let’s Do This, women in their 20s are the fastest-growing demographic in event participation this year. However despite this, women are still 16% less likely to run every week compared to men. This disparity is particularly striking given that women report higher levels of personal benefits from running, such as improved fitness, better sleep, and reduced stress.
The reasons for this are complex and personal, however we have broken down three key challenges discussed during our panel and the solutions explored that could help address them.
1. The Pressure of Pace
One of the biggest hurdles for many women is the pressure to run faster. Despite the average UK woman’s running speed of 06:37 min/km (according to Strava), most run clubs don’t cater to this with the slowest pace often around 6 minutes per km. Add to this the relentless focus on personal bests and fast times on social media, and it’s no surprise that many women feel too intimidated to join in.
Thankfully, there are starting to be more people rebelling against this speed obsession, including our panelist, Emily Shane. Emily has been leading the charge to encourage more women to disregard pace and focus on the experience of running to drive uptake amongst women. Initiatives like events without cutoff times and more inclusive pace groups at running clubs are vital to creating a more welcoming environment and broadening the benefits of running to the experience and community.
2. Perception of Sport in Schools
One of the topics hotly discussed was how for many girls, the barriers to enjoying physical activity start at school. Puberty, coupled with changing bodies and fluctuating emotions, can make sports feel daunting and uncomfortable for teenage girls. Research highlights this disparity: only 38% of girls enjoy sport and exercise compared to 53% of boys, and just 26% of girls feel confident in physical activity versus 43% of boys.
The panel emphasised the need to address this such as:
- Introducing a wider variety of sports and fitness activities to cater to different interests
- Providing more supportive and confidence-boosting PE kits.
- Showcasing more female role models in sport to inspire young girls.
By addressing these issues at the school level, we can foster a love of sport that lasts into adulthood.
3. Treatment at Events
This is a topic that panelist Sophie Power, founder of SheRACES is incredibly knowledgeable and passionate about. Even at organised running events, women often experience unequal treatment. From “unisex: t-shirts (which are actually designed for men) to a lack of sanitary products in portaloos, these "small things" can collectively make women feel like an afterthought. Prize money inequality and rigid event policies—like no deferral options for pregnant or postpartum women—further highlight these disparities.
Thankfully, initiatives like the 50:50 campaign by Threshold (a campaign to get 50% of women at Ultra startlines vs. the current average of 30%) and the advocacy work of SheRACES are driving change, and there are many amazing event organisers such as Maverick, Threshold, Why We Run and many more, that are working hard to make their events are inclusive as possible for women.
Despite these challenges, the panel and attendees felt overwhelmingly optimistic about the future of running for women and the benefits it brings us. Progress is being made, however we all need to add our voices to the conversation to help more women get into the sport and reap the benefits.
Some Helpful Resources
Here are a few helpful resources. This list isn’t exhaustive by any means, however is a good starting point for those looking for inspiration on where to start.
Female friendly events:
- Threshold Events
- London Landmarks Half Marathon
- Maverick Events
- Why We Run
- Women Run Series London 2025
Female Only Run Clubs
From Radio to Race Day: Hattie Pearson’s Path to Endurance Event Glory
Hattie Pearson is the type of person who doesn’t just dabble in fitness (or most things…!) She dives in headfirst, often with no hand-holding (except, perhaps, metaphorically). From her first triathlon in 2021 to a series of jaw-dropping endurance feats in 2024, she’s been redefining what’s possible with determination, community, and a big ‘YES’ attitude.
Hattie Pearson is the type of person who doesn’t just dabble in fitness (or most things…!) She dives in headfirst, often with no hand-holding (except, perhaps, metaphorically). From her first triathlon in 2021 to a series of jaw-dropping endurance feats in 2024, she’s been redefining what’s possible with determination, community, and a big ‘YES’ attitude.
Just say YES
Hattie’s ‘yes’ streak started when a friend and her decided to do a sprint triathlon together. “We had such a great time,” Hattie recalls, “and I was like, I want to do more of this.” That spark quickly turned into a blaze of ambition. By the following year, she was competing in Outlaw triathlons and even signing up for a full-distance Ironman—before completing her first half-distance event. “I didn’t give myself the choice to not carry on,” she says.
The Power of Community
For Hattie, discovering the 10IronWomen network—a group committed to gender parity in triathlons—was a game-changer. “It’s amazing to see a community encouraging women and non-binary folk to show up,” she explains. “Seeing others doing it made me think, I want to be a part of this.” That sense of solidarity and shared purpose has been a recurring theme, whether she’s lacing up for a winter triathlon in the Alps or a grueling ultra-marathon closer to home.
A Year of Big Goals
This year, Hattie set herself a dizzying list of challenges. She swam 500 kilometers (yep, that’s half a million meters!) and tackled a range of events, including a winter triathlon complete with ski touring, the Étape du Tour cycling challenge, and her first ultra-marathon. Each was hard in its own way—whether it was battling snowy trails with crampons or smashing out seven-and-a-half-minute miles for 13.1 miles. But for Hattie, the difficulty is the point. “Every time I achieve something I thought was impossible, I remind myself: I can do hard things.”
Balance and Burnout
With goals that ambitious, fitting it all in can be a challenge. Early mornings help. “I’m one of those people who can get up at 5:00 a.m,” Hattie admits, however it also takes a lot of discipline. With her work on Hits Radio starting later in the day, she carves out time for training, dog walks, and the occasional tantrum over broken goggles. “I’ve definitely had those ‘forgetting-my-swimming-costume’ moments,” she laughs. But her key to staying motivated is simple: keep it fresh and fun. Whether it’s joining her triathlon club for training or trying a completely new event, keeping it fun and different is the secret to staying motivated and on track to reach your goals.
Advice for Aspiring Endurance Athletes
For anyone looking to follow in her footsteps (or strokes), Hattie has this advice:
- Be patient. Results don’t come overnight, and the journey is as important as the destination.
- Stop comparing. “Your journey is completely your own. Social media only shows the highlights,” she reminds us.
- Find your community. Whether it’s a running club, a neighbor for early morning jogs, or an online network, accountability and camaraderie make all the difference.
What’s Next for Hattie?
In 2025, Hattie plans to tackle her first multi-day event, the Monster Triathlon. Admittedly it is as scary as it sounds, kicking off with a 5K swim in Loch Ness, followed by a 1,000-kilometer bike ride to Windsor, and wraps up with a casual 50K run to London(!). Her goals also include more open-water swimming, trail running, and maybe—just maybe—an even bigger endurance challenge. (Though definitely not swimming the English Channel: “No way am I swimming through jellyfish without a wetsuit!”)
Hattie Pearson’s journey is more than a personal triumph. It’s a testament to the power of showing up, saying yes, and proving that with the right mindset, anything is possible. Whether you’re tackling your first 5K or dreaming of an ultra-marathon, Hattie’s story is proof that the finish line is worth the hard miles. And when you cross it? You’ve won your race—medal or not. 🏅
Make your own electrolyte drink
Why spend on expensive sports drinks when you can make a natural, hydrating electrolyte drink right at home? With just a few simple ingredients, you can create a refreshing blend packed with essential minerals and hydration-boosting properties. Perfect for fueling your workout or post-run recovery, this homemade option keeps it natural, affordable, and effective.
Why spend on expensive sports drinks when you can make a natural, hydrating electrolyte drink right at home? With just a few simple ingredients, you can create a refreshing blend packed with essential minerals and hydration-boosting properties. Perfect for fueling your workout or post-run recovery, this homemade option keeps it natural, affordable, and effective.
Ingredients:
- 1 pinch of high-quality sea salt
- Small piece of fresh ginger, peeled
- 500ml coconut water (e.g., Rebel Kitchen)
- Juice of 1 lime
- Fresh mint leaves
Instructions:
- Prepare Salt & Ginger: Add a pinch of sea salt and the peeled ginger to a blender.
- Add Coconut Water & Lime: Pour in the coconut water, squeeze in the lime juice, and add a few mint leaves.
- Blend & Serve: Blend until smooth, pour into a glass, and garnish with extra mint. Enjoy your refreshing, hydrating drink!
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