Redwood (Summer) Trail Run

The 2026 race will be held on Saturday, August 15.

Full marathon and half marathon, along with the 30km and 50km events, start at 8:00 a.m.;

the 5-mile event starts at 8:15 a.m.

Time limit has a time limit of 8 hours 45 minutes, full marathon has a time limit of 9 hours, and the limit for all events is 9 hours.

There are also intermediate time limit.

Full marathon must pass the 13-mile point within 4 hours 15 minutes, by 12:15 p.m. For the 50km,

the cutoff at the same 13-mile point is 3 hours 45 minutes, or 11:45 a.m.

Oakland’s typical August temperatures are a high of 22.7°C and a low of 14.2°C.

Monthly precipitation is only 1.3mm.

Bib and T-shirts are available from 7:00 a.m. on race day in the check-in area at the Chabot Space & Science Center.

The organizers recommend arriving 45 minutes before the start of your event.

Parking is free.

Participants in the 30km, full marathon, and 50km events may check a drop bag without valuables at the start/finish area.

Aid station are spaced 5–6 miles apart.

Fruit, salty snacks, candy, water, and scratch sports drink are available.

However, this race does not use cups.

Since there are no cups prefilled at aid station, each runner must carry a container for water, and collapsible cups are sold for $5 at check-in.

The organizers recommend carrying at least 20 ounces of water between aid station sections.

The organizers note that poison oak is common in California parks and advise runners to stay on the trail and wash with Tecnu after finishing.

They also add that bees are active during this period, so runners with allergies should be prepared.

Headphones are permitted only on dirt sections, and dogs are not allowed in course.

Full marathon Entry fee cost $85.80, including the $5.80 registration fee.

Prices increase after August 8, 2026.