Run the River Marathon

Kennewick, WA, USA • April 18, 2026
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partly-cloudy-day Partly cloudy throughout the day.

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The Run the River event includes various distances ranging from a 5k to a full marathon. This road race features a scenic course that travels through the towns of Kennewick, Richland, and Pasco all while staying next to the mighty Columbia River. The start/finish line is located next to the river in Columbia Park.

The course follow paved paths and roadways the entire time and offers participants with great views of beautifully landscaped parks, the meandering Columbia River, as well as the rugged surrounding mountains. The flat courses and cool spring weather will provide runners with a prime opportunity for a fast finish time if that is their goal. Likewise, the course lends itself well to runners of all abilities as well as walkers... which tend to have the best time out there! Source

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When is the 2026 Run the River Marathon?

The 2026 Run the River Marathon will be held on Saturday April 18, 2026.

Is the Run the River Marathon a Boston Marathon Qualfier?

Yes, the Run the River Marathon is an official Boston Marathon qualifier.

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Historical Weather & Results

RunScore
Run Score: 8
Temp
68°F
Min/Max
52°/68°F
Dew
43°F
Days of Rain
1/1
Wind
8mph
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YearLow / HighRain

Run the River Marathon 2025 Weather History

Partly cloudy throughout the day with morning rain.

2025
partly-cloudy-day
52°/ 68°Light
Run Score: 8
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

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You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR