SGRAIL Marin - Triathlon & Trail Half Marathon
Race Date
Oct 2, 2026
Location
San Rafael, CA
Quick facts
- Date
- Friday, October 2, 2026
- Location
- San Rafael, California
- Distance
- Half marathon (13.1 mi)
- Course
- Loop Course
- Terrain
- Trail
- USATF certified
- Not listed
The Experience
Welcome to the SGRAIL Marin - Triathlon and Trail Half Marathon! Registration June 26, 2026 (12:00 PM PST) - Pre-Registration StartsJuly 18, 2026 - Early Bird Registration StartsAugust 4, 2026 - Regular Registration StartsSeptember 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 TBATRIATHLON - Olympic Distance = 1,500 Meter Swim / 40K Bike / 10K RunTRIATHLON - Olympic Relay (2 or 3 person relays) = 1,500 Meter Swim / 40K Bike / 10K RunTRAIL HALF MARATHON = 13.1 Miles/21KSGRAIL CHALLENGE= Triathlon + Trail Half Marathon EVENT WEEKEND SCHEDULE: THURSDAY - TBA Bib Pick-up FRIDAY - TBA Bib Pick-upKids Fun Event SATURDAY - 7:00 AM Gates Open | 8:30 AM Roads Close | 9:00 AM Start Time | 1:00 PM Roads Open Olympic TriathlonOlympic Triathlon Relay SUNDAY - 7:00 AM Gates Open | 8:30 AM Start Time | 12:30 PM Event Ends Trail Half Marathon
Logistics
Race Day
Friday, October 2, 2026
Start Time
8:30 AM
Giveaway
Ryzon Premium T-Shirt
Start Location
McNear’s Beach Park, San Rafael, CA, 94901
Course Info
Course Type
Loop Course
Terrain
trail
Difficulty
Rolling Hills
Quality Score
first year
no finisher counts yet
small race — neutral
needs a few years of results
limited extras
no finisher data yet
no winner time yet
typical high 83°F
Race Day Weather
5-year historical avgStart (Low)
56°
Afternoon (High)
83°
Hot conditions — adjust pace expectations, prioritize hydration
0.0"
Precipitation
7 mph
Wind
59%
Humidity
Frequently asked
When is the SGRAIL Marin - Triathlon & Trail Half Marathon?
The SGRAIL Marin - Triathlon & Trail Half Marathon is held on Friday, October 2, 2026, starting at 8:30 AM.
Where does the SGRAIL Marin - Triathlon & Trail Half Marathon take place?
It takes place in San Rafael, California.
What distances does the SGRAIL Marin - Triathlon & Trail Half Marathon offer?
The half marathon (13.1 miles).
Is the SGRAIL Marin - Triathlon & Trail Half Marathon course flat and good for a PR?
The SGRAIL Marin - Triathlon & Trail Half Marathon is a rolling hills, loop course course.
HalfRuns editorial — independent, no paid placement.
Explore More Journeys
Can't make it to San Rafael? Discover other experiences that match your running style.
Search All Races
