Prix de Diane Longines 2026: live concert, elegant picnic, and thrilling races at Chantilly Racecourse

Since 1843, the town of Chantilly has played host to the world’s largest race for fillies: the Prix de Diane Longines. This year, the event takes place on Sunday, June 14, 2026 at the Chantilly Racecourse, promising an extraordinary day filled with elegance contests, live music, and horse racing. Get ready — it’s time to dress to impress and head to the season’s most glamorous (and coolest) Garden Party!

To get into the swing of things before the first race, start by joining us at midday for Ladurée's chic picnic on the lawns of the Village de Diane. Don't forget to reserve your collector's hat box for a refined lunch on the grass, or your place on the Table de Diane. Afterwards, don't hesitate to take part in the many events that will keep the day going until nightfall.

• To be read
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Between two races, you can't miss the famous Concours d'Elegance, in which you can of course take part! The only condition: come wearing your most eccentric hat possible. Then all you have to do is parade around, proudly displaying your hat in the height of creativity! A real highlight of this glamorous event, the competition attracts some 400 hatted women every year. The winner will be crowned Mademoiselle Diane Longines and receive a handsome prize!

Another must-see of the day? The legendary gallop race, reserved for the world's fastest 3-year-old fillies, at around 4pm. And there's plenty of excitement in store for us all, with a vintage Ferris wheel taking pride of place in the heart of Diane's village, offering a lovely view of the Château.

And since the mood is already right, we're extending the party to the Folies de Diane, the spot for the most hardcore party-goers, with supercharged DJ sets in a privatized runway-side corner, hosted by DJ sets. In short, the must-attend social event of the season! So, are you ready for a real Garden Party against the backdrop of the Château de Chantilly and the Prince de Condé's stables?