SGRAIL Marin - Triathlon & Trail Half Marathon

OCT
2-4
2026
Experience a weekend of multisport racing at McNear’s Beach Park featuring an Olympic triathlon, a trail half marathon, and a combined challenge for participants seeking dual events in San Rafael.
2-4 Oct 2026
52 kilometers 13 miles

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Event Overview

The SGRAIL Marin is a multi-day sports event held at McNear’s Beach Park in San Rafael, California. The weekend features a variety of racing formats including traditional triathlon distances, relay options, and a dedicated trail running event. Participants may choose to compete in individual disciplines or combine races over two days through a specific multi-event category.

Available Distances

Participants can enter the following events:

  • Olympic Triathlon: Consists of a 1,500 meter swim, a 40 km bike ride, and a 10 km run.
  • Olympic Relay: The Olympic distance triathlon completed by a team of two or three people.
  • Trail Half Marathon: A 13.1 mile (21 km) run on trail terrain.
  • SGRAIL Challenge: A combination of the Triathlon on Saturday and the Trail Half Marathon on Sunday.
  • Kids Fun Event: A triathlon event specifically for children aged 13 and under.

Location and Schedule

The event is staged at McNear’s Beach Park, located at 201 Cantera Way. The schedule begins on Thursday and Friday with bib pick-up and the children's event. On Saturday, the venue hosts the Olympic distance triathlon and relay. On Sunday, the focus shifts to the trail half marathon. The site gates open early each morning, and specific road closures are implemented on Saturday to accommodate the cycling and running portions of the triathlon. Visit the organization's website for the most recent information.

52 km
Olympic Relay
13 mi
Trail Half Marathon
Sgrail Challenge - Triathlon & Trail Half Marathon
Olympic Triathlon
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