2026 100KM d'Espoir

The 100KM d’Espoir is a charity Backyard Ultra at Parc du Domaine Vert in Mirabel on Saturday, August 29, 2026. Organizers describe a roughly 5 km loop that starts every hour for up to 20 hours, with runners continuing only if they finish each loop before the next hourly start. Formats include an individual challenge and team options of two, four, or five, with team rules limiting each hourly loop to one teammate.

The event raises funds for Leucan, supporting children living with cancer and their families, and registration materials state that event profits go to the foundation. The setting is framed as a community gathering in nature, with aid stations and on-site partner activity through day and night. For more Quebec options, browse races in Quebec.

Organizers describe a Backyard Ultra built around a loop of about 5 km at Parc du Domaine Vert in Mirabel. Starts are hourly for 20 hours beginning at 10:00 a.m.; participants must complete the loop before the next start to continue. Team formats share the challenge with only one teammate allowed to complete each hourly loop. Official materials emphasize a natural park setting and day-to-night running with aid zones; they do not specify pavement versus trail surface in text.

• Saturday, August 29, 2026 at Parc du Domaine Vert, Mirabel
• Backyard Ultra format: ~5 km loop, hourly starts, up to 20 hours
• Individual and team-of-2 / 4 / 5 options
• Benefits Leucan; profits remitted to the foundation
• Nature park setting with day and night running
• Aid stations and partner activations on site
• Visitor tickets available for non-racing supporters