Northwest Series - Day 2 OR
The Northwest Series offers a flat, fast half-marathon in Hermiston, Oregon.
Race Date
Sep 20, 2026
Location
Hermiston, OR
Quick facts
- Date
- Sunday, September 20, 2026
- Location
- Hermiston, Oregon
- Distance
- Half marathon (13.1 mi) + 26.2M, 10K, 5K run
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
Highlights
Good For
Atmosphere
Course
The Experience
Part of the expansive "World's Best Marathon & Half Series," this Northwest Series event in Hermiston, Oregon, is designed for speed. The course is exceptionally flat, with minimal elevation changes, making it a prime candidate for personal bests.
Runners can expect a straightforward road race experience. The typical race-day weather, averaging between 54–78°F, provides a comfortable environment for pushing the pace. While specific historical data on field size and repeat runners for this particular event isn't detailed, the broader "Mainly Marathons" series emphasizes a "Loony Community" and a commitment to inclusivity with no time limits.
This race is ideal for those chasing a fast time or looking to complete another state in their marathon-chasing journey. The focus is on a well-executed, efficient race day, supported by the organizer's commitment to award-winning medals and good food at the finish.
Race-provided description
World's Best Marathon & Half Series!
No Time Limits
Great Food
Award-Winning Medals
Loony Community!
We RUN this country, TOGETHER!
Event details and schedule
Thanks for running with Mainly Marathons! Take a look at our website for additional details about this series and our other series of races. Take a look at the Northwest Series page to get details on each course.
Also, join our Facebook group to stay up-to-date with our loony adventures: Main Group and Northwest Series Group.
If you're interested in some Mainly Merch, check out our online store HERE. We'll offer some items (hats, stickers, magnets, mugs, etc.) in-person at the races, the Mainly Merch store best option for a variety of fun designs and quality merchandise to showcase your loonacy!
If you have any questions, email MB@MainlyMarathons.com
We RUN this country, TOGETHER!
Course Info
Course Type
Loop Course
Terrain
road
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Quality Score
first year
no finisher counts yet
small race — neutral
needs a few years of results
3 timing sources · 5 photos
no finisher data yet
no winner time yet
typical high 78°F
Race Day Weather
5-year historical avgStart (Low)
54°
Afternoon (High)
78°
Warm — hydration strategy is key, start conservatively
0.0"
Precipitation
11 mph
Wind
49%
Humidity
Race Photos
Frequently asked
When is the Northwest Series - Day 2 OR?
The Northwest Series - Day 2 OR is held on Sunday, September 20, 2026.
Where does the Northwest Series - Day 2 OR take place?
It takes place in Hermiston, Oregon.
What distances does the Northwest Series - Day 2 OR offer?
The half marathon (13.1 miles), plus 26.2M, 10K, 5K run.
Is the Northwest Series - Day 2 OR course flat and good for a PR?
The Northwest Series - Day 2 OR is a ultra-flat, loop course course.
HalfRuns editorial — independent, no paid placement.
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