SGRAIL Marin – Triathlon & Trail Half Marathon

Welcome to the SGRAIL Marin 
SGRAIL is so much more than a triathlon. Expect the beauty of Marin County — the Bay, the Golden Gate and China Camp State Park — varied courses and aid stations with real character, combined with community events: a sporty warm-up, great local food and meeting your fellow SGRAILERS.At SGRAIL it’s not about the clock – it’s about the experience, good food and the moments you share.
The SGRAIL Marin Triathlon is a USA Triathlon Sanctioned event.
Registration

June 26, 2026 (12:00 PM PST) – Pre-Registration Starts
July 18, 2026 – Early Bird Registration Starts
August 4, 2026 – Regular Registration Starts
September 18, 2026 – Late Registration Starts

September 25, 2026 – Last Day for Triathlon, Triathlon Relay & SGRAIL Challenge Registration
September 30, 2026 – Last Day for Trail Half Marathon Registration
DISTANCES: (ALL COURSES)

TRIATHLON – Kids Event (13 & Under) = Details TBA
TRIATHLON – Olympic Distance = 1,500 Meter Swim / 40K Bike / 10K Run
TRIATHLON – Olympic Relay (2 or 3 person relays) = 1,500 Meter Swim / 40K Bike / 10K Run
TRAIL HALF MARATHON = 13.1 Miles/21K
SGRAIL CHALLENGE= Triathlon + Trail Half Marathon

EVENT WEEKEND SCHEDULE:

THURSDAY – TBA

Bib Pick-up

FRIDAY – TBA

Bib Pick-up
Kids Fun Event

SATURDAY – 7:00 AM Gates Open | 8:30 AM Roads Close | 9:00 AM Start Time | 1:00 PM Roads Open

Olympic Triathlon
Olympic Triathlon Relay

SUNDAY – 7:00 AM Gates Open | 8:30 AM Start Time | 12:30 PM Event Ends

Trail Half Marathon

Why SGRAIL?
The question people ask us most is: what’s next? Which title or record are you after? Truth be told, we’re here because we love this sport and all its diversity — the nerves before a race, the new adventures, and the joy of the process of getting to those days. That’s when nature becomes our playground, and “getting lost” out there is a beautiful part of the journey. That’s where SGRAIL comes from: hours of exploring with friends, pushing each other — but never just for a personal best. Sitting down after a magic day, as a community, sharing stories over a coffee or a beer.– Jan Frodeno