Whistler X Triathlon
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Whistler X Tri : Off-road triathlon in Whistler
Whistler X Tri is an off-road triathlon held at Lost Lake Park in Whistler, British Columbia. The event combines a lake swim, mountain biking on singletrack, and a trail run, across two race days.
The swim takes place in Lost Lake with a mass start. The mountain-bike leg uses the Zappa trail network, which includes green and blue rated singletrack with technical and rideable sections. The trail run follows Lost Lake trails and passes through old-growth forest and areas with fall color.
Race formats include Kids & Youth races for ages 5–15, a Sprint distance, a Championship distance that serves as a 2027 Multi Sports World Championship qualifier, and a Team Challenge relay for teams of two or three. The event is organized by Endurance Specific Events and is presented by Jim Pattison Subaru Northshore. Dates for the event are September 19 and 20, 2026. Visit the organization's website for the most recent information.
