New to triathlon
Never done one? Good. Start with a free session, find a group at your pace and learn as you go.
T3 Triathlon Club · UCD
Triathlon for Every Level. Support for Every Goal.
From first-time triathletes to National Series podium contenders and Ironman athletes, T3 provides coaching, training partners and a supportive community to help members achieve their goals. Based at UCD, South Dublin.
01 / Come as you are
Everyone’s welcome.
Whether you’re chasing a National Series podium, an Ironman PB or qualification for a championship race, you’ll find quality coaching and training partners at T3. Just starting out? You’ll find them too.
Coming back
Time away happens. Ease back in with a social run or ride and people who’ll be glad to see you.
Racing already
National Series racing, podium ambitions, Ironman racing and championship qualification: coached sessions and training partners for your next start line.
02 / Your goals
Whatever your goal
Everyone joins T3 for different reasons. Some want to complete their first triathlon. Others want to improve their swimming, cycling or running. Some are preparing for Ironman races or chasing National Series podiums. Whatever your goal, you’ll find coaching, structure and support to help you achieve it.
- 01Your first triathlon
- 02Stronger swim, bike and run
- 03A marathon PB
- 04Completing an Ironman
- 05Racing the National Series
- 06Lifelong fitness
03 / Coaching
Coaching for every stage of the journey
Whether you’re training for a first sprint triathlon or a major race target, our coached swimming, cycling and running sessions help members train consistently, improve performance and build confidence.
Based in UCD, South Dublin, T3 benefits from access to excellent swimming, cycling and running facilities that support year-round training.
Explore coached training04 / The week
A typical week with T3
Coached sessions are included with Full Membership and change with the season: Sept to May, then June and July. Based at UCD, South Dublin. Weekend social sessions are open to all members.
Our social runs and rides happen most weeks, including August, when a run or ride leader is available. They won’t go ahead if we don’t have a leader. Distances, paces and group sizes vary from week to week.
Monday
Swim · 6:30am to 7:30am
UCD 50m pool · All standards · Included with Full Membership
Tuesday
Track session · 7:30pm to 8:30pm
UCD · All standards · Included with Full Membership
Thursday
Indoor spin · 7:00pm to 8:00pm
UCD · All standards · Included with Full Membership
Friday
Swim · 6:00pm to 7:00pm
UCD 50m pool · All standards · Included with Full Membership
Monday
Open sea swim · 7:00pm to 8:00pm (usually)
Seapoint or Killiney beach · All standards · Included with Full Membership
Replaces the early pool swim. The beach depends on the tide; the location is confirmed each week in the members’ app.
Tuesday
Track session · 7:30pm to 8:30pm
UCD · All standards · Included with Full Membership
Thursday
Outdoor coached cycle · 6:30pm to 8:30pm
Applegreen, Clonskeagh Road · All standards · Included with Full Membership
Replaces indoor spin.
Friday
Swim · 6:00pm to 7:00pm
UCD 50m pool · All standards · Included with Full Membership
Saturday · most weeks, all members
Social run 8:00am
Meet at UCD
All members · Distances, paces and group sizes vary
Most weeks, subject to a run leader being available. The groups depend on who comes along.
Sunday · most weeks, all members
Social cycle 8:00am
Meet at UCD
All members · Distances, paces and group sizes vary
Most weeks, subject to a ride leader being available. The groups depend on who comes along.
05 / Club life
The community behind the training
Race days, coffee stops, finish lines and weekends away. We call it Transition Three, the moments where training partners become friends and a club becomes a community. Members train hard, race hard and enjoy the journey together.
06 / Member Stories
Stories from our members
Every member’s journey is different. Some are preparing for their first triathlon, while others are chasing personal bests, podium places or Ironman finish lines. These are their stories.
Posted by Scott Field ·
18th, a dodgy calf and AI in my pocket
“Thanks to everyone at T3 for the swims, the spins, the Sunday miles and the company. It really is an amazing club full of amazing people. See you at the pool.”
Read the story: 18th, a dodgy calf and AI in my pocket
By Liam Boggan ·
Liam's Dublin City Marathon 2025
“The Dublin Marathon 2025 was one of the most enjoyable activities in my T3 career.”
Read the story: Liam's Dublin City Marathon 2025
By Kat Sherling ·
Kat's Ironman Hamburg
“From what started as a random adventure, triathlon is (hopefully) a bit of a lifestyle for me now.”
Read the story: Kat's Ironman Hamburg07 / Joining
How joining works
Try a free session first, then join when you’re ready. Pick the membership that fits your goals:
Social
€96a year
Stay active, meet members and be part of the T3 community through social runs, cycles and club events throughout the year. Runs and rides take place most weeks when a leader is available.
Saturday social runs (most weeks) · Sunday social cycles (most weeks) · Club events
Coached sessions are not included.
Full (under 30)
€300a year
All the social activities, plus coached swimming, cycling and running sessions designed to help you build confidence, improve performance and achieve your personal goals.
Everything in Social · All coached sessions
Full (30 and over)
€430a year
All the social activities, plus coached swimming, cycling and running sessions designed to help you build confidence, improve performance and achieve your personal goals.
Everything in Social · All coached sessions
- 01
Get Triathlon Ireland membership
T3 members get the club discount. Triathlon Ireland membership also gives you race licensing and insurance.
- 02
Choose T3 Triathlon Club
Select T3 Triathlon Club and your T3 membership option through the Triathlon Ireland website or app.
- 03
You’re in
We’ll send you access to the members’ app with the full training calendar.
Your goals. Our coaching. Our community.
Whether your aim is a first triathlon, an Ironman finish or a National Series podium, we’d love to help you get there.
Try a Free Session