Triathlon Indoor 2026 in Brussels: Join the Challenge at Neptunium on 12 and 13 December
The Viva For Life Indoor Triathlon returns for its third edition on Saturday 12 and Sunday 13 December 2026 at Neptunium swimming pool in Schaerbeek. Participants will swim, cycle on stationary trainers and run on treadmills, with three relay formats combining a sporting challenge with support for a good cause.
The concept: three disciplines, one team challenge
- Swimming in the pool
- Cycling on a stationary trainer
- Running on a treadmill
Teams of 2 to 4 participants take turns in each discipline. Depending on the chosen format, each discipline lasts 60, 30 or 20 minutes.
Three formats on 12 and 13 December
- Saturday 12 December, 8 am-4 pm – Indoor Triathlon: 3 hours of activity, with 1 hour per discipline in relay format. The main challenge for teams looking to push themselves.
- Sunday 13 December, 8 am-12 pm – Sprint: 3 × 30 minutes, a shorter challenge for those wanting to discover indoor triathlon.
- Sunday 13 December, 1 pm-4 pm – Family & Youth: 3 × 20 minutes in a fun, welcoming atmosphere, including young participants aged 10 and over.
A charity triathlon supporting Viva For Life
This third edition supports Viva For Life, the RTBF charity initiative helping children living in poverty. The event is organised by ASBL SPORT 1030 in collaboration with the Ligue Francophone de Triathlon.
Make a donation: Viva For Life Indoor Triathlon fundraising page.
Practical information and registration
- Dates: Saturday 12 and Sunday 13 December 2026
- Location: Neptunium swimming pool – Rue de Jérusalem 58, 1030 Schaerbeek
- Formats: Indoor Triathlon (3 hours), Sprint (1 hour 30 minutes) and Family & Youth (1 hour)
- Teams: 2 to 4 people; age and height requirements vary by format
- Registration: online until 10 December 2026; no on-site registration
- Contact: fgoudezeune@1030.be
View the details and register for the 2026 Indoor Triathlon
A sporting weekend for different ability levels
Whether with friends, family or colleagues, participants can choose a format that suits their team and enjoy a weekend combining sport, camaraderie and solidarity.
