Semi- de Boulogne-billancourt Christian Granger2026

Sun, 15 Nov 2026 · Boulogne-Billancourt · 13 days

Almost race day

13 days to go

Typical race day: 9°C (47°F)

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Distance: 21.1 km
Layout: Loop
Race day: 9°C (47°F)

The Boulogne-Billancourt Half Marathon is an annual road running event over the half marathon distance which takes place in November in Boulogne-Billancourt, France. This National level race accommodates several thousand marathoners every year. The course for the race is a looped circuit that starts and finishes at the town hall. It follows a clockwise route along the river Seine, passing the Sèvres – Cité de la céramique, Pont de Saint-Cloud. It heads north towards the Longchamp Race course and has a short loop through the Bois de Boulogne, where it reaches the halfway mark. At this point the course loops back on itself and follows the Seine in a southerly direction until it finally ends up at the town hall finish point.

Before you go

Pro tips

Racing it

01
Loop start and finish
The race starts and finishes at the town hall, so you can leave warm clothes at the start area and don't need transport to the start.
From the layout
02
Cold November race
Typical race-day temperature is 8.5°C, so wear layers you can shed and plan to warm up before the start.
From the temperature
03
Pace the Seine double-back
You run along the Seine clockwise, then loop back and follow it south again. Hold back on the first riverside stretch to save energy for the return.
From the description
04
Halfway in the Bois
The halfway mark is inside a short loop through the Bois de Boulogne. Use that loop to check your pace and settle in for the second half.
From the description
05
Landmarks as checkpoints
The course passes Sèvres – Cité de la céramique and Pont de Saint-Cloud before heading north to Longchamp Race course. Use them as mental markers.
From the description

In Boulogne-Billancourt

Metro access
Boulogne-Billancourt is served by the Paris metro, so runners and spectators can avoid race-day traffic and parking hassles.
Spectator spots
Spectators can watch along the Seine or in the Bois de Boulogne. The town hall start and finish area is also a central place to cheer.
Recover in green spaces
After the race, the Bois de Boulogne and Parc de Saint-Cloud offer gentle paths for a walk. The city blends residential streets with riverside views.

Written by AI from the course data and the race's description; city tips are general knowledge. Check race-day details with the organizer.

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