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Run the River Marathon

Kennewick, WA
Saturday, April 18, 2026


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Course Description
Marathoners will start heading west along Columbia Park Trail in Kennewick and will then turn north on the Sacajawea Heritage Trail to head into Richland. After going under the I-182 Bridge, the course continues north on the Riverfront Trail path until a turnaround point in Howard Amon park. After completing the out & back section, participants will cross the bridge into Pasco and head east on Court Street until turning onto the Sacajawea Heritage Trail and entering Chiawana Park. Once reaching the Blue Bridge, the course crosses the river again into Kennewick and follows the Sacajawea Heritage Trail east until participants turn onto Clover Island and a short out and back. After turning back onto the Sacajawea Heritage Trail eastbound, participants cross back into Pasco on the Cable Bridge, and turn right onto Washington St. Upon reaching the Sacajawea Heritage Trail at the end of the road, participants will turn right and follow the path back to the Blue Bridge. After crossing the river the final time, the course follows the Sacajawea Heritage Trail back into Columbia Park, and winds back around to finish where the race started.

The course elevation varies between 350 and 400 feet above sea level with the total elevation gain being under 410 feet. Most, if not all, of the elevation gain is encountered when going over the river on the bridges so be prepared for these short climbs.





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Race Information

Race Dates

2027: TBD
2026: Saturday, April 18, 2026

Course Information

Profile: Mostly Flat
Type: Loop
Surface: Road/Pavement

Boston Qualifier?: Yes
World Marathon Major Qualifier?: No


Race Day Weather

Mean Temp.: 52°F (11°C)
Average High: 64°F (17°C)
Average Low: 41° F (5°C)





PR Score & Course Score

PR Score: 99.11
Course Score: 99.27


Race Size

2026: 161 Finishers
2025: 127 Finishers
2024: 76 Finishers
2023: 58 Finishers
2022: No Results
2021: No Results

BQ Percentages

2026: N/A
2025: N/A
2024: N/A
2023: N/A
2022: N/A
2021: N/A

Miscellaneous Information

Pace Groups?: No

Weather Averages for Last 2 Years


Race Day Temperatures

High: 70°F  (21°C)
Low: 38°F  (3°C)

Race Start Conditions

49°F  (9°C)
Humidity: 62%

Clear
N 7 mph

PR Score

99.27

Course Score

99.27









Run the River Marathon Rankings, Course Speed & Boston Qualifier Statistics

The Run the River Marathon was the 328th largest marathon in the U.S. in 2025 based on the number of finishers. In 2024, it ranked as the 395th largest marathon in the U.S..

The Run the River Marathon has a Course Score of 99.27, ranking it as the 173rd fastest marathon course in the U.S. and the 17th fastest marathon course in Washington.

Typical race-time temperature and humidity levels are slightly above the ideal range for optimal marathon performance. Combined with the course profile, this gives the Run the River Marathon a PR Score of 99.11. The PR Score ranks the Run the River Marathon as the 144th best marathon in the U.S. for running a Personal Record (PR) and the 16th best marathon for a PR in Washington.

Together, these rankings provide a quick snapshot of how the Run the River Marathon compares with other marathons in the U.S. and Washington for speed, PR potential, Boston Marathon qualifying success, and overall participation.

Run the River Marathon Marathon Rankings Summary
Course Speed173rd fastest marathon course in the U.S.
Ranked 17th fastest marathon course in Washington
Top 38% Nationally#17 of 26 in Washington
PR Potential144th best marathon for a Personal Record in the U.S.
Ranked 16th best marathon for a PR in Washington
Top 31% Nationally#16 of 26 in Washington
Boston Qualifier Rate261st highest BQ percentage in the U.S.
Ranked 14th highest BQ percentage in Washington
Based on 2025 Boston Marathon qualifying results
Top 55% Nationally#14 of 24 in Washington
Race Size328th largest marathon in the U.S.
Ranked 19th largest marathon in Washington
Based on 2025 results
Top 55% Nationally#19 of 32 in Washington

Learn more about PR Scores and Course Scores on the FAQ page.




Elevation Chart


Max Elevation: 432 feet (131m)
Min Elevation: 343 feet (104m)

Elevation Gain: 337 feet (102m)
Elevation Loss: 337 feet (102m)


Run

Course updated 02/13/2025





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