Race day is here! · Sun, Aug 23, 2026
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Sunday, August 23rd, 2026
5415 220th Avenue SE, Issaquah WA
Half
56–76°F · low rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
55–87°F
dry
2024
54–59°F
rain
2023
55–72°F
rain
2022
56–81°F
dry
2021
53–69°F
dry
2020
49–73°F
dry
2019
53–72°F
dry
2018
55–75°F
dry
2017
59–78°F
dry
2016
50–75°F
dry
Best months to race in Washington →
Race-day forecast · Sunday, Aug 23
Cloudy · 57–75°F
Sunday, Aug 23starts near 57°F · 7% chance of rain · wind up to 7 mph
About this race
Race Overview
- Course Type: One of the fastest and flattest courses in the region.
- Best Performance: Come out and secure a personal best.
- Scenic Views: Gorgeous views of Lake Sammamish.
- Certification: The race is USATF Certified.
Registration Includes
- Race Medallion: Included in your registration.
- T-Shirt: Half Sam T-Shirt is included.
- Parking: Plenty of free parking at the Issaquah Court house.
Event Details and Schedule
- Hydration Stations: Water, Gatorade, Gel, and First Aid every 3 miles.
- Emergency Contact: Call 911 in case of emergency.
- Mile Markers: Elevated mile marker signs for the Half 13.1.
- Turn Around Points: Marked at 1.55 miles, 3.1 miles, and 6.55 miles.
Race Information
For more information, visit the official race page: Half Sam Race Registration.
Course map
Train with a club
Run clubs near Issaquah to train with before race day.
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