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Road running

Semi-marathon de Boulogne-Billancourt Christian Granger 2026

Sunday, November 15, 2026

🇫🇷 Boulogne-Billancourt · France

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The events

Half marathon

Elite athletes start: a pro podium will be published.

When to start training

For a half marathon, the Cadevia Coach plans 12 weeks of training: ideal start on Monday, August 24, 2026, and no later than Monday, September 7, 2026.

Ideal start: Monday, August 24, 2026 (12 weeks)Latest start: Monday, September 7, 2026 (10 weeks)
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 pace bandYour 5K, 10K, half and marathon timesYour maximal aerobic speed and training pacesWhat to drink and eat during exerciseYour 7 heart rate zones

Frequently asked questions

When is Semi-marathon de Boulogne-Billancourt Christian Granger 2026?

Semi-marathon de Boulogne-Billancourt Christian Granger 2026 takes place on Sunday, November 15, 2026, in Boulogne-Billancourt (France). Date read on October 15, 2026 from its official source.

When should I start training for Semi-marathon de Boulogne-Billancourt Christian Granger?

For a half marathon, allow 12 weeks of training (10 at the very least). For Sunday, November 15, 2026, the ideal start is Monday, August 24, 2026.

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

🇫🇷 Boulogne-Billancourt · France

Same weekend

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Road: around the same time

Sun25OctMarseille-Cassis AG2R La Mondiale🇫🇷 Marseille · France20 kmSun25OctMedio Marathon Valencia Trinidad Alfonso Zurich🇪🇸 Valencia · SpainHalf marathonSun1NovTCS New York City Marathon🇺🇸 New York · United States★ IconicMarathon 42.195 kmSun8NovMarathon de Bordeaux AG2R La Mondiale🇫🇷 Bordeaux · FranceMarathon 42.195 kmHalf marathon

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).