SGRAIL Marin - Triathlon & Trail Half Marathon logo

SGRAIL Marin - Triathlon & Trail Half Marathon

SGRAIL Marin - Triathlon & Trail Half Marathon is a triathlon, running, and trail running race on October 2–4, 2026 in San Rafael, CA, with entry fees from $90 to $265.

Date
October 2–4, 2026 (35 days to go)
Price
$90–$265
Sports
TriathlonRunningTrail Running
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From the Organizer

REGISTER NOW — REGULAR PRICING IS ON. Price increases after September 17, 2026. Don't wait.
Last day — Triathlon, Relay & SGRAIL Challenge: Sep 25 · Last day — Trail Half Marathon: Sep 30

DISTANCES

  • Olympic Triathlon — 1,500 m swim / 40K bike / 10K run
  • Olympic Relay (2–3 people) — 1,500 m swim / 40K bike / 10K run
  • Trail Half Marathon — 13.1 mi / 21K
  • SGRAIL Challenge — Triathlon + Trail Half Marathon (both days)
  • Kids "Fun" Event (13 & under) — details TBA

EVENT WEEKEND SCHEDULE

  • THURSDAY — Bib pick-up @ Sports Basement Novato (TENTATIVELY 3:00 PM - 7:00 PM)
  • FRIDAY — Bib pick-up · Kids Fun Event @ McNears Beach Park
    • There will not be transition access on Friday, no gear drop-ff. The transition access will only be available Saturday. 
  • SATURDAY Olympic Triathlon & Relay
    • 7:00 AM Gates open 
    • 7:15 AM Transition opens
    • 8:30 AM Roads close (no parking or park access via car)
    • 8:40 AM Transition Closes
    • 9:00 AM Start Wave 1
    • 12:00 PM - 5:00 PM Transition open for bike/gear pick-up (You must pick-up your gear/bike on Saturday, there will be no overnight holds)
    • 1:00 PM Roads open
    • 7:00 PM Park Closes  
  • SUNDAY  Trail Half Marathon
    • 7:00 AM Gates open
    • 8:30 AM Start
    • 12:30 AM Cutoff
    • 7:00 PM Park Closes

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

Everything you need to know — sgrail.country/marin

Events

Kids "Fun" Event
Olympic Triathlon$200
Olympic Relay$265
Trail Half Marathon$90

Weather

Typical Conditions

It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.

Typical High

80°

Typical Low

52°

Chance of Rain

7%

Based on US Climate Normals data from Kentfield, 2 mi from the venue.

Sunrise 7:06 AMSunset 6:51 PMDaylight 11h 44m

Host City

About San Rafael, CA

Population

60,604

as of 2023

City Elevation

36 ft

Nearest Airport

OAK

San Francisco Bay Oakland International Airport · 26 mi

Time Zone

Pacific Time

From Endurance Grid

A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.

Race Location

Your Next Start Line

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at SGRAIL Marin - Triathlon & Trail Half Marathon, put it on the calendar, and turn “someday” into a start date.

35

Days to train

Race
SGRAIL Marin - Triathlon & Trail Half Marathon
Date
October 2–4, 2026

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From Endurance Grid

About These Sports

This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.

Triathlon

Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.

Running

From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Trail Running

Running off-road — dirt, singletrack, and mountain paths — from 5Ks to ultras. The terrain makes for an exciting twist and adventure in your running journey.

Frequently Asked Questions

What is the SGRAIL Marin - Triathlon & Trail Half Marathon?
SGRAIL Marin - Triathlon & Trail Half Marathon is a triathlon, running, and trail running race held in San Rafael, California on October 2, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more triathlon races near you or explore our sports guides to learn what race day actually feels like.
When and where is the SGRAIL Marin - Triathlon & Trail Half Marathon?
Friday, October 2, 2026 in San Rafael, California at McNear’s Beach Park. Check the event page for exact start times and wave schedules.
How do I register for the SGRAIL Marin - Triathlon & Trail Half Marathon?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

SGRAIL Marin - Triathlon & Trail Half Marathon

Oct 2, 2026

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