Half Marathon 50K UltraKidsRelayTrail

SGRAIL Marin - Triathlon & Trail Half Marathon 2026

Date: Race weekend: Friday to Sunday, October 2 to 4, 2026
Start time: 5:00 PM start (Los Angeles)
Location: San Rafael, California
Entry fee: From Free
Included with entry: Includes a shirt

Registration is open.

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Official race website

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Events and entry fees

Event	Distance	When	Entry fee	Cap
Friday, Oct 2, 2026
Kids "Fun" Event	Kids	Oct 2, 20265:00 PM	Free	–
Saturday, Oct 3, 2026
Olympic Relay	Relay	Oct 3, 20269:00 AM	$390	–
Olympic Triathlon	50K	Oct 3, 20269:00 AM	$265	–
SGRAIL Challenge - Triathlon & Trail Half Marathon	Ultra	Oct 3, 20269:00 AM	$330	–
Sunday, Oct 4, 2026
Trail Half Marathon	Half Marathon	Oct 4, 20268:30 AM	$105	–

Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.

Race day planning

Entry fee schedule

Kids "Fun" Event: Free until Sep 30.
Olympic Relay: $390 until Oct 1.
Olympic Triathlon: $265 until Oct 1.
SGRAIL Challenge - Triathlon & Trail Half Marathon: $330 until Oct 1.

Online registration closes Oct 1, 2026, unless the race fills first.

How the price compares

At $265, entry is about 166 percent above a typical 50K in California, which costs $99.50 right now.

What a typical finish looks like

A typical finisher at a 50K in California runs 6:35:17, about 12:43 a mile, based on 21 races with published results. Women typically finish in 6:53:54 and men in 6:30:53.

Light and altitude

Sunrise on race morning is at about 7:05 AM, and the Kids "Fun" Event starts at 5:00 PM. The start sits about 260 feet above sea level.

Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.

Start location and course

McNear’s Beach Park, San Rafael, CA 94901

Directions to the start

The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.

2023 results

All results (3 years)

Sprint Triathlon

228

finishers

1:46:15

median

1:07:22

winning time

43% / 57%

women / men

Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

Olympic Triathlon

177

finishers

3:15:55

median

2:11:51

winning time

23% / 77%

women / men

Olympic Relay

finishers

2:47:04

median

2:15:46

winning time

47% / 53%

women / men

Aggregated from official results for SGRAIL Marin - Triathlon & Trail Half Marathon. Individual finisher names are not stored here.

How fast do you need to be at SGRAIL Marin - Triathlon & Trail Half Marathon?

At the 2023 Sprint Triathlon, the fastest tenth finished in 1:26:00 or better, the top quarter in 1:34:10, and half the field in 1:46:15; the last tenth came in after 2:08:50.

At the 2023 Olympic Triathlon, the fastest tenth finished in 2:44:18 or better, the top quarter in 2:54:08, and half the field in 3:15:55; the last tenth came in after 4:01:25.

At the 2023 Olympic Relay, the fastest tenth finished in 2:27:43 or better, the top quarter in 2:39:54, and half the field in 2:47:04; the last tenth came in after 3:24:39.

Third place by age group, 2023 Sprint Triathlon
Age	Women	Men
Under 20	n/a	1:45:46
20-29	1:35:00	1:19:28
30-39	1:29:36	1:21:46
40-49	1:41:34	1:23:25
50-59	1:43:42	1:22:36
60-69	n/a	1:49:33

Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.

What would my time get me?

Where a finish time would have placed in 2023.

EventFinish timeGenderAge group

Finishers by year

Up 8 percent since 2021.

395

2021

358

2022

428

2023

All events combined, from official results.

SGRAIL Marin - Triathlon & Trail Half Marathon Other year by year

From 2021 to 2023, the field went from 130 to 228 finishers, and the median time dropped from 2:16:24 to 1:46:15.

Year	Finishers	Median	Fastest tenth	Winner
2023	228 (+21%)	1:46:15	under 1:26:00	1:07:22
2022	188 (+45%)	1:31:05	under 1:14:53	59:58
2021	130	2:16:24	under 1:55:11	1:44:50

From each year's official results for the Other; virtual options are left out.

Typical race-day weather

Around October 2 the day usually runs from 55°F at dawn to 77°F in the afternoon, with measurable rain on about 4% of days. Cold snaps dip to 52°F and hot years reach 93°F.

Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.

Race details

Where: McNear’s Beach Park, San Rafael, CA 94901Map
Course: Trail
Start elevation: About 260 feet
Included with entry: Ryzon Premium T-Shirt
Distances: Half Marathon, 50K, Ultra, Kids, Relay
Editions: 2026 (Oct 3, 2026), 2025 (Apr 12, 2025), 2023 (Oct 28, 2023), 2022 (Oct 29, 2022), 2021 (Oct 30, 2021)

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Quick answers

When is SGRAIL Marin - Triathlon & Trail Half Marathon?: It is a race weekend, Friday to Sunday, October 2 to 4, 2026: Kids on Friday; Relay, 50K, Ultra on Saturday; Half Marathon on Sunday.
How much does it cost?: Entry starts at Free before processing fees.
When does registration close?: Online registration closes Oct 1, 2026, unless the race fills first.
Is the entry fee high for California?: At $265, entry is about 166 percent above a typical 50K in California, which costs $99.50 right now.
Do runners get a shirt or medal?: Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
What distances can I run?: Half Marathon, 50K, Ultra, Kids, Relay.
How big is it, and how fast?: In 2023, 228 runners finished the Sprint Triathlon; the median finish was 1:46:15 and the winner ran 1:07:22.
Where does it start?: McNear’s Beach Park, San Rafael, CA 94901.