Tri-Cities Marathon
The Tri-Cities Marathon offers a fast, flat course along the Columbia River.
Race Date
Oct 25, 2026
Location
Richland, WA
Quick facts
- Date
- Sunday, October 25, 2026
- Location
- Richland, Washington
- Distance
- Half marathon (13.1 mi) + 26.2 Miles
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Yes
- Finishers on record
- 244
Highlights
Good For
Atmosphere
Course
The Experience
The Tri-Cities Marathon, first run in 2002 and now in its 20th year, presents a largely flat and fast course that winds through Richland, WA. This USATF-certified race is designed for speed, with a minimal net drop and only 1% separation between the start and finish, making it a prime candidate for personal bests. The event typically sees around 75 finishers, drawing participants from about six states.
Runners can expect a well-supported race day, with aid stations every two miles along the 21.1km route. The typical race-day weather in October offers cool, crisp conditions, averaging between 43–59°F. Participants receive a T-shirt, a finisher's medal, and chip timing as part of their entry fee, which also covers full course support.
Race-provided description
Join us as we celebrate another exciting year of endurance, community, and achievement at the 43rd annual Tri-Cities Marathon! Runners of all levels are invited to take part in this long-standing tradition, bringing together athletes, families, and supporters from across the region for an unforgettable race day experience. New for 2026 The marathon course is returning to the previous route that includes the iconic Blue Bridge. Certification is currently pending.And that’s not all — we’re thrilled to introduce the Tri-Cities Spooktacular 5K. If you’ve always wanted to run in this celebrated race but weren’t quite ready for the longer course, now’s your moment! Costumes welcome Remembering Richard "Keith" Fuller. 1957-2025 1980 Tri-Cities Marathon Champion
Logistics
Race Day
Sunday, October 25, 2026
Start Time
9:00 AM
Giveaway
T-Shirt
Start Location
Riverfront Hotel, Richland, WA, 99352
Course Info
USATF CertifiedCourse Type
Loop Course
Terrain
road
Scenery
Lake River
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.5%
Also Offers
USATF Certified Course
WA17012RMB · Tri Cities Marathon 1/2 Marathon
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Course Map
1 other map for this race
Quality Score
Solid Pick523 years running
~75 finishers a year
shrinking
0% returning runners
USATF certified · 5 timing sources
runners from 6 states
winner 1:14:10
typical high 59°F
Race Day Weather
5-year historical avgStart (Low)
43°
Afternoon (High)
59°
Ideal racing weather — cool and comfortable
0.1"
Precipitation
12 mph
Wind
65%
Humidity
Historical Finish Times
How 244 finishers actually crossed the line across 3 years.
Most recent
2024
Total finishers
244
Median time
2:08:25
Latest turnout
75
States
6
Turnout by year
2017–2024
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Tri-Cities Marathon?
The Tri-Cities Marathon is held on Sunday, October 25, 2026, starting at 9:00 AM.
Where does the Tri-Cities Marathon take place?
It takes place in Richland, Washington.
What distances does the Tri-Cities Marathon offer?
The half marathon (13.1 miles), plus 26.2 Miles.
Is the Tri-Cities Marathon course flat and good for a PR?
The Tri-Cities Marathon is a ultra-flat, loop course course. The course is USATF-certified, so finish times can be used for qualifying.
How many people run the Tri-Cities Marathon?
HalfRuns has finish records for 244 runners who have completed the Tri-Cities Marathon.
HalfRuns editorial — independent, no paid placement.
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