A new dimension of sports emotions!
STELLAR INDOOR TRIATHLON
We invite you to the new STELLAR INDOOR TRIATHLON series, which combines the intensity of competition with the comfort of indoor training.
A unique sporting experience awaits you – in the modern, motivating atmosphere of our club!
NEW OF THE SEASON!
The competition will be held on state-of-the-art IC7 bikes from ICG®, guaranteeing precise power measurement and a realistic riding experience. This will make your results even more accurate and the competition more exciting!
Competition format
Swimming stage
400 m
Bicycle stage
(on IC7 bikes)
15 km
Running stage
3 km
What awaits you:
- Three intense competitions in one place
- Access to the entire club throughout the competition day – use the gym, swimming pool, relaxation and wellness area
- Attractive starter packages from our partners and sponsors
Regardless of your level of advancement, what matters is passion, energy and fun!
Next START 14/02/2026
To check available times and reserve your spot, click "Register" – there you will find a full list of registration dates.
Don't wait – the number of places is limited.
Registration and payment
- If you already have an active STELLAR premium fitness club app, simply log in to your account.
- If you don't have the app yet, you'll receive an email from us with login instructions within 24 hours. Download the app from the App Store or Google Play. Log in with the email address you provided during registration and set your own password.
- In the app, select the "Shopping" tile, then the starter package you are interested in and make the payment.
Ready!
Start dates:
25.10.2025
RESULTS >>
22.11.2025
RESULTS >>
13.12.2025
RESULTS >>
10.01.2026
RESULTS >>
14.02.2026
14.03.2026
CLASSIFICATION AFTER 4 RACES >>
Final: APRIL 2026
Competition rules
Rules for qualifying for the finals
STELLAR INDOOR TRIATHLON
What is indoor triathlon?
Triathlon is a versatile sport consisting of three disciplines: swimming, cycling, and running. Triathlon distances vary in length and difficulty, offering challenges for everyone, from beginners to experienced athletes.
Indoor triathlon is an alternative form of triathlon, held in enclosed spaces such as swimming pools, gyms and fitness rooms.
Competitors swim in a pool, ride exercise bikes, and run on treadmills. Indoor triathlon is a training session that allows you to test your abilities in controlled conditions, regardless of the weather.
Join the group
STELLAR Indoor Triathlon
We invite you to a group dedicated to the STELLAR Indoor Triathlon competition!
Browse competition galleries, see results, and stay up to date with other events.
What is triathlon?
Triathlon is a sport consisting of three competitions performed without a break, one after the other:
- Swimming
- Cycling
- Running
Athletes cover set distances in each of these disciplines. Triathlon develops endurance, strength, and technique—it's one of the most comprehensive endurance sports in the world.
How is indoor triathlon different from classic triathlon?
The difference is in the place and conditions:
- A classic triathlon takes place outdoors (lake, bike route, road race).
- An indoor triathlon is a competition held inside a sports facility – without the need to move between disciplines.
Is indoor triathlon for beginners?
Yes! Indoor triathlon is an excellent form of competition and training for:
- people who are just starting their adventure with triathlon,
- athletes who want to train in controlled conditions,
- anyone looking for a challenge and fun in one.
Where can you take part in an indoor triathlon in Warsaw?
At STELLAR Warsaw, we organize regular indoor triathlon competitions with professional timing, instructors, and a friendly atmosphere. Sign up or check the event calendar.
How to prepare for an indoor triathlon?
Basic preparation:
- Practice swimming, cycling, and running – preferably in short bursts.
- Make sure to alternate between disciplines (so-called transition zone).
- Dress comfortably, bring a towel, water, and a positive attitude.