FR Join the betaJoin
Triathlon

Triathlon du Lion (Belfort) 2027

From May 22 to 23, 2027

🇫🇷 Belfort / Sermamagny (Lac du Malsaucy) · France

Add to my calendarOfficial website ↗

The events

Triathlon L “La Gueule du Fauve”, M 1.5/40/10, S 300 m/20/5, relay, kids

When to start training

For a 70.3 (middle distance), the Cadevia Coach plans 18 weeks of training: ideal start on Monday, January 18, 2027, and no later than Monday, March 1, 2027.

Ideal start: Monday, January 18, 2027 (18 weeks)Latest start: Monday, March 1, 2027 (12 weeks)

The other events

Sprint triathlon12 weeks · ideal start March 1, 2027
Olympic-distance triathlon14 weeks · ideal start February 15, 2027
Your plan up to race day, in CadeviaThe Coach builds every week until the race, around your days and your level.Join the beta →

Tools for this race

Your triathlon finish time, Sprint to IronmanWhat to drink and eat during exerciseThe right pressure for your tiresYour 7 heart rate zones

Frequently asked questions

When is Triathlon du Lion (Belfort) 2027?

Triathlon du Lion (Belfort) 2027 takes place from May 22 to 23, 2027, in Belfort / Sermamagny (Lac du Malsaucy) (France). Date read on October 15, 2026 from its official source.

When should I start training for Triathlon du Lion (Belfort)?

For a 70.3 (middle distance), allow 18 weeks of training (12 at the very least). For Saturday, May 22, 2027, the ideal start is Monday, January 18, 2027.

Does Cadevia organise this race?

No. Cadevia is a training app: we read the dates from the official sources to help you choose and prepare your race. Entries are handled by the organiser.

Where

🇫🇷 Belfort / Sermamagny (Lac du Malsaucy) · France

Same weekend

Sat22MaySanlam Cape Town Marathon🇿🇦 Cape Town · South Africa★ IconicMarathon 42.195 kmSat22MayThe Championship🇸🇰 Šamorín · Slovakia★ IconicDistance 100 (2/80/18 km)Sun23MayIRONMAN 70.3 Aix-en-Provence🇫🇷 Aix en Provence · France70.3113 kmSun23MayIRONMAN 70.3 Kraichgau🇩🇪 Kraichgau · Germany70.3113 km

Triathlon: around the same time

Sat3AprIRONMAN 70.3 Oceanside🇺🇸 Oceanside · United States70.3113 kmSat3AprIRONMAN 70.3 Vilamoura-Algarve🇵🇹 Vilamoura · Portugal70.3113 kmSat10AprSingapore T100🇸🇬 Singapore (Marina Bay) · Singapore100 km T100 (2 km / 80 km / 18 km)…Sun18AprIRONMAN 70.3 Valencia🇪🇸 Valencia · Spain70.3113 km

Where this comes from

Date and place read on October 15, 2026 from its official source.

Cadevia does not organise this race. Spotted a mistake? Tell us.

Places: GeoNames (CC BY 4.0) and © OpenStreetMap contributors (ODbL). Base map: Natural Earth (public domain). Logos belong to their organisers and are shown so each race is easy to recognise — Cadevia has no link with them, and any logo is removed on request. Flags: flag-icons (MIT licence).