Château de Chantilly Multisport Festival

About the Event

The Château de Chantilly Triathlon & Multisport Festival takes place on Saturday, June 6, and Sunday, June 7, 2026, at the magnificent Château de Chantilly in Hauts-de-France, France. This 16th edition of the event offers a wide range of disciplines including triathlon, duathlon, open water swimming, and running, with distances for all ages and levels – from discovery categories for children to the full Iron-distance "Le Bastion" (3.8km swim, 180km bike, 42.2km run) – making it the closest Iron-distance race to Paris.

Day	Discipline	Race Name	Distance (Swim / Bike / Run)	Start Time (approx.)
Saturday, June 6	Triathlon	Le Condé Plus	800m / 40km / 8km	08:00 - 09:30
Saturday, June 6	Triathlon	Sprint	750m / 20km / 5km	10:00 - 10:30
Saturday, June 6	Triathlon	Super Sprint Louise XV	400m / 20km / 4km	11:00
Saturday, June 6	Triathlon	Starter Découverte	200m / 20km / 2.5km	11:30
Saturday, June 6	Triathlon	Youth (13-15 years)	300m / 4km / 1.8km	14:00
Saturday, June 6	Triathlon	Youth (11-12 years)	200m / 4km / 1.3km	14:15
Saturday, June 6	Triathlon	Youth (8-10 years)	100m / 2km / 1.3km	14:30
Saturday, June 6	Open Water Swim	5km Swim	5km	12:00
Saturday, June 6	Open Water Swim	2.5km Swim	2.5km	12:15
Saturday, June 6	Open Water Swim	1 Mile Swim	1 mile	12:30
Saturday, June 6	Running	5km Run	5km	16:00
Sunday, June 7	Triathlon	Le Bastion (Iron Distance)	3.8km / 180km / 42.2km	07:00
Sunday, June 7	Triathlon	Le Gantelet (Half Iron)	1.9km / 90km / 21km	08:30 - 09:30
Sunday, June 7	Triathlon	Olympique	1.5km / 40km / 10km	12:15 - 14:00
Sunday, June 7	Duathlon	Standard Duathlon	10km run / 40km bike / 5km run	11:45
Sunday, June 7	Running	Marathon	42.2km	11:00
Sunday, June 7	Running	Relais Marathon L'Escadrille	Marathon relay (team of 3)	11:00
Sunday, June 7	Running	Half Marathon	21.1km	10:30
Sunday, June 7	Running	10km Run	10km	10:00

Event Logistics and Participant Information:

Required Documents: Triathletes and duathletes must provide licenses. Runners must submit a PPS health form. Swimmers need a FFN license or medical certificate. All participants must upload their documents online for validation before race day.
What's Included for Bastion Participants: Finisher t-shirt, backpack, post-race meal, massage, and the iconic finisher medal.
Payment Plan: A 3-month payment plan is available – look for the option at checkout.
Wetsuit Rental: Exceptional rates for wetsuit rental are available – details to be announced.
Recovery Partner: IGNITE RECOVERY offers sauna, cold bath, and compression therapy for post-race recovery.
On-Course Nutrition Partner: True Fuels offers energy gels and packs.
Event Photography: Pre-order official digital photos.
Spectators: Free to explore the magnificent château park, cheer athletes from multiple viewing points, enjoy village entertainment, and soak in the atmosphere.
Merchandise: Train and finish with official Castle Race Series kit; finisher t-shirts available for purchase.
Volunteers: The event is always looking for volunteers – opportunities include exchanging for race entries, fundraising for charity, or paid crew positions.
Medals & Plaques: Commemorative engraved plaques for medals are available to order.
Travel: Partnerships with ferry companies and hotels offer exclusive discounts for traveling to France.
Charity Partner: Alzheimer's Research UK is the national charity partner – charity places are available to help raise funds.
Results: 2025 results are available online; 2026 results will be posted post-event.
New for 2026: "L'Escadrille" Marathon Relay – one marathon runner starts, joined at halfway by a half marathon runner, and joined 10km from the finish by a third runner; all three must cross the finish line together.

Route and Atmosphere:

Swim Course: Open water swimming in the Grand Canal – a 2.5km-long canal that feeds into the Oise River, offering breathtaking views of the château landscape.
Bike Course: Navigates along the Chantilly forest on fast, scenic roads.
Run Course: Takes place within the château grounds towards the Maison de Sylvie – a memorable running experience through the magnificent and iconic château park.
Venue: The magnificent Château de Chantilly in Hauts-de-France hosts the second event of the 2026 season. Throughout the weekend, athletes and spectators enjoy the château gardens and a festive village with music, food stalls, and activities for children.
Family-Friendly: Youth triathlon categories for ages 8-15, discovery distances for beginners, and the festive village atmosphere make this an event for all ages.
Race Village: Festive village with music, food stands, children's entertainment, partner booths, recovery areas, and merchandise stalls.
Spectator Experience: Multiple viewing points throughout the château grounds, gardens, and along the course make this an exceptional day out for families and supporters.
Atmosphere: A celebration of multisport with a wide range of distances for all levels – from age 9 to 90, beginner to elite. Whether swimming, biking, running, or doing all three, this event promises an unforgettable experience in one of France's most beautiful settings.

The Château de Chantilly Triathlon & Multisport Festival 2026 – taking place June 6-7 in Hauts-de-France – offers Iron-distance, Half Iron, Olympic, sprint, youth triathlons, duathlon, open water swimming, and running events in the magnificent gardens of the Château de Chantilly, with distances for all ages and abilities.

Races Offered

Le Condé Plus

Jun 06, 2026

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Distance — 0.8 km 40 km 8 km

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Type — Running

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08:00

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€110.00

Sprint

Jun 06, 2026

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Distance — 0.75 km 20 km 5 km

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Type — Running

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10:00

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€95.00

Super Sprint Louise XV

Jun 06, 2026

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Distance — 0.4 km 20 km 4 km

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Type — Running

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11:00

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€80.00

Starter Découverte

Jun 06, 2026

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Distance — 0.2 km 20 km 2.5 km

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Type — Running

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11:30

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€60.00

5km Swim

Jun 06, 2026

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Distance — 5K

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Type — Running

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12:00

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€50.00

2.5km Swim

Jun 06, 2026

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Distance — 2.5K

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Type — Running

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12:15

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€45.00

1 Mile Swim

Jun 06, 2026

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Distance — 1.6K

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Type — Running

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12:30

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€40.00

Le Bastion (Iron Distance)

Jun 07, 2026

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Distance — 3.8 km 180 km 42.2 km

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Type — Running

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07:00

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€350.00

Le Gantelet (Half Iron)

Jun 07, 2026

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Distance — 1.9 km 90 km 21 km

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Type — Running

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08:30

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€260.00

10 km

Jun 07, 2026

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Distance — 10K

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Type — Running

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10:00

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€50.00

Semi-marathon

Jun 07, 2026

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Distance — 21.1K

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Type — Running

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10:30

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€65.00

Marathon

Jun 07, 2026

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Distance — 42.2K

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Type — Running

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11:00

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€85.00

Standard Duathlon

Jun 07, 2026

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Distance — 10 km 40 km 5 km

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Type — Running

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11:45

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€100.00

Olympique

Jun 07, 2026

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Distance — 1.5 km 40 km 10 km

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Type — Running

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12:15

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€140.00

Weather Overview

These values represent the 3-year monthly averages for June in Chantilly.

Temp (°C)

Feels Like (°C)

thermostat 13.4° / 23.8°

wb_sunny 12.1° / 22.3°

Wind (km/h)

Humidity (%)

air 10.4 /

water_drop 69.4%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 13.4° / 23.8°

wb_sunny 12.1° / 22.3°

air 10.4 km/h

water_drop 69.4%

About Chantilly

Learn more about the host city, Chantilly.

Chantilly, a town to the north of Paris and its metropolis, is the site of one of the most famous and beautiful French châteaux.

Hotels & Places to Stay

Video

Watch highlights and course previews from previous years.

Runner Reviews

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About the Event