Tri-Cities Marathon
Typically 42–60°F · low rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
43–56°F
rain
2024
40–55°F
dry
2023
40–52°F
rain
2022
45–58°F
dry
2021
42–63°F
dry
2020
27–41°F
dry
2019
44–74°F
dry
2018
50–58°F
dry
2017
41–69°F
dry
2016
47–65°F
dry
Best months to race in Washington →
About this race
Thank You for an Incredible 2026!
The 2026 Tri-Cities Marathon & Relay is officially in the books, and we want to extend a massive thank you to all of our amazing runners, volunteers, sponsors, and community partners who made this year unforgettable.
While we are still celebrating this year's success, our team is already hard at work planning our upcoming events—including the upcoming Richland RunFest on February 27, 2027! Registration and event details will be opening soon for next year's marathon, so stay tuned and check back here for updates.
Results for 2026:
Results Home - Tri-Cities Marathon
Course map
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