5 Sealskinz Runners on What They Wish They'd Known Before Their First

RUNNING

5 Sealskinz Runners on What They Wish They'd Known Before Their First Marathon

BY ISABELLA WHARTON

APRIL 2026

Training for your first marathon is as much about preparation as it is about perseverance. From building endurance and avoiding injury to mastering race-day pacing and choosing the right kit, there’s a lot more to 26.2 miles than simply putting in the miles. For first-time runners, knowing what to expect and what to prioritise can make the difference between struggling through and finishing strong.

Whether you’re searching for practical marathon training tips, guidance on race-day essentials or advice on how to avoid common beginner mistakes, learning from experience is key. The reality is that even the most structured marathon training plan can’t teach you everything, especially when it comes to factors like fuelling, recovery, and adapting to unpredictable UK weather conditions.

At Sealskinz, our team has faced it all, from wet long runs to tough race-day conditions, and we understand what it takes to perform when it matters most. As we approach marathon season, you may find yourself struck down by "maranoia", a term used by runners to encompass the fear that sets in in the purgatory that is the lead-up to the actual day.

While it isn't possible to control every factor on the day (as much as we'd like to, we can't control the weather!), there are ways to make the run itself more tolerable. You've been preparing for months now, so breathe, calm yourself and sit back and listen to our running gurus. Let the team offer essential marathon tips we wish we’d known before our first race, covering everything from training strategies and gear choices to mindset and race-day execution!

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SKYE BAXENDALE, CRM AND COMMUNITY MANAGER

PRE-RUN PREP

Getting your pre-run routine right is key to a successful marathon. Aim to eat 2–3 hours before the start. Rice Krispies are 85% carbs and easy on the stomach. It is equally important to stay calm; avoid rushing to the start line, this can spike your heart rate. Arrive early, stay off your feet where possible, and I'd recommend doing mobility exercises to stay loose.

WHAT TO BRING

Be prepared for changeable conditions, especially in the UK. If it’s going to be chilly waiting at the start line, bring an old long-sleeve shirt or jumper you can leave at the start line. Many races have a donation policy for these old items. If you’re targeting a PB, a pace wristband can also help you stay on track without constantly checking your watch.

YOUR PLAYLIST

A well-planned playlist can boost performance. Start with slower tracks, then build intensity as the race goes on. Save your favourite bops for the final miles, and add a few extras at the end in case you need an extra push.

DURING THE RUN

Make sure you're starting in the correct timing wave to avoid congestion. Start slow and smooth and try managing your heart rate for the first few miles until you find your rhythm. Make sure you have your name on your bib; nothing feels better than people shouting out your name. Stay disciplined! Don't be tempted by the buckets of sweets and cakes from the spectators; stick to your fuelling strategy.

AFTER

And breathe! Take it slow. Allow your body to catch up with what you've just done, keep moving gently and allow your body to recover gradually. Light stretching can help prevent stiffness and make the journey home far more comfortable.

RICH EDMONDS, CHIEF OPERATIONS OFFICER

PRACTISE YOUR NUTRITION STRATEGY

One of the most overlooked marathon tips is practising your nutrition plan well before race day. Your long training runs are the perfect opportunity to test what works for you, from energy gels and drinks to timing and portion sizes. Everyone’s stomach responds differently under pressure, and the last thing you want is to discover mid-race that something doesn’t agree with you. By refining your fuelling strategy in training, you’ll go into race day confident, knowing exactly how to keep your energy levels steady from start to finish.

PACE YOURSELF FOR A STRONG SECOND HALF

When it comes to marathon pacing, restraint is everything. It’s incredibly easy to get carried away in the early miles when you’re feeling fresh, but going out too fast can cost you later on. In reality, you’re far better off holding back more than you think in the first half, giving yourself the best chance of running a stronger, faster second half. This approach not only improves performance but also makes the overall experience far more controlled and enjoyable.

RESPECT THE FINAL MILES

There’s a reason runners say the marathon really begins at mile 20. The first part of the race can feel manageable, but the final six miles are where fatigue truly sets in, and your preparation is tested. In my opinion, a marathon is just a 20-mile warm-up followed by a 6-mile race, and that’s where smart pacing and discipline pay off. Don't get overconfident; ensure you have the energy, both physically and mentally, to push through those final miles without hitting the wall or becoming overconfident too soon.

RICKY GREEN, RETAIL DIRECTOR

PACE IT

One of the most important marathon tips is to start slower than you think and pace yourself patiently from the very beginning. Sticking to your training plan and fuelling regularly throughout the race will help you maintain consistent energy levels and avoid hitting the wall later on. While it’s tempting to go out fast, a controlled start gives you the best chance of finishing strong rather than fading in the final miles.

SMILE!

Most importantly, remember to enjoy the experience; the energy from the crowds will carry you through the early stages, and a strong, positive mindset will see you through to the finish line.

SHOP RUNNING GEAR

ZOE NORMAN, MERCHANDISER

TRAINING

Having a realistic training plan is essential when preparing for a marathon. It’s important to listen to your body along the way, rather than trying to do too much too soon. Pushing through pain or overloading your schedule can lead to injury, so consistency will always deliver better results than overtraining.

FUEL

Fuelling your body properly is just as important as the miles you run. Supporting your training with nutritious food helps maintain energy levels, aids recovery and keeps you performing at your best. Taking the time to nourish your body throughout your training will pay off when it matters most.

SMILE

On race day, don’t forget to enjoy the experience. It’s easy to get caught up in times and targets, but remembering the hard work you’ve already put in can help you stay positive and relaxed. Smiling, taking in the atmosphere and embracing the moment can make all the difference, especially when the race starts to get tough.

STEVE LEMMON, HEAD OF DESIGN

IMPORTANCE OF ANTI-BLISTER SOCKS

Wearing anti-blister socks can make a huge difference, helping reduce friction and keep your feet comfortable. I relied on my trusty Sealskinz anti-blister running socks to sort me out across the 26.2 miles.

SUN PROTECTION

Sun protection is vital, even in the UK, where conditions can change quickly. Both my wife and I made sure to protect our heads with UV-protected, breathable caps.

HYDRATION

Hydration is key, but it’s important not to overdo it. Drinking too much water can be just as problematic as too little, so stick to a good balance you’ve practised in training.

MUSIC

A good playlist can be a real performance booster, giving you a mental lift when the miles start to take their toll.

TRAINING

Training properly is essential; there's no shortcuts with a marathon, and building up gradually is the best way to feel strong and prepared. Ultimately, you have to put the miles in. Consistency is what builds endurance, and pairing your training with reliable gear ensures you’re ready to perform, whatever the conditions.

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