Winter has arrived, bringing cooler temperatures and new challenges for triathletes.

To help you stay on track, our friends at Tri Training Harder have shared their top tips for training safely, sharpening your skills, and keeping your motivation high throughout the colder months. From smart workouts to staying warm and injury-free, they’ve got everything you need to make the most of your winter training.

The 2026 Castle Race Series calendar is here! Whether you’re gearing up for your first-ever triathlon or chasing a new personal best, we’ve got the perfect event for you. 

From stunning castle backdrops to unforgettable race-day atmospheres, it’s time to start planning your next big adventure.

We will notify you once our 2026 races go live on the Triathlon Ireland website for the purposes of One Day Membership purchases.

Already signed up for a 2026 event? Keep an eye on your inbox—your full registration form will be landing with you soon.

We’re moving to njuko, giving you an improved registration experience from start to finish. Here’s what you can expect:

• Faster booking with fewer steps
• A smoother, more intuitive experience
• A clean, personalised dashboard to manage your race details with ease

Everything you need, all in one place – making your journey to race day simpler than ever.

Create rich, on-brand business messages that stand out, using eye-catching images, engaging video, interactive buttons, and real-time updates to keep your content fresh and relevant.

Connect with your customers through personalised, dynamic messaging designed to capture attention, spark engagement, and drive meaningful action.