Registration is open.
Likely to sell out. 357 finished the Half Marathon in 2026, and this year's cap is 400.
We earn a small commission when you register through this link, at no cost to you. Details
Official race websiteAdd to calendar: Apple or Outlook · Google
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Friday, Apr 16, 2027 | ||||
| Kids Marathon | Kids | Apr 16, 20276:00 PM | $15$20 after Jan 1, 2027 | 250 |
| Saturday, Apr 17, 2027 | ||||
| Marathon - Early Start | Marathon | Apr 17, 20276:30 AM | $120$135 after Jan 1, 2027 | 50 |
| 4 Person Marathon Relay | Relay | Apr 17, 20277:30 AM | $180$200 after Jan 1, 2027 | 200 |
| Marathon | Marathon | Apr 17, 20277:30 AM | $120$135 after Jan 1, 2027 | 200 |
| Half Marathon | Half Marathon | Apr 17, 20278:30 AM | $80$90 after Jan 1, 2027 | 400 |
| 5k | 5K | Apr 17, 20278:45 AM | $35$40 after Jan 1, 2027 | 600 |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Kids fee goes up to $20 on Jan 1, 2027.
Online registration closes Apr 17, 2027, unless the race fills first.
At $120, entry is about 12 percent above a typical marathon in Washington, which costs $107.50 right now.
A typical finisher at a marathon in Washington runs 4:18:59, about 9:53 a mile, based on 10 races with published results. Women typically finish in 4:36:04 and men in 4:07:43.
Sunrise on race morning is at about 6:09 AM, and the Kids Marathon starts at 6:00 PM. The start sits about 350 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Columbia Park in Kennewick, WA. The start/finish line is located at the following coordinates: 46.2233, -119.14675, Kennewick, WA 99336
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
Aggregated from official results for Run the River. Individual finisher names are not stored here.
At the 2026 5k, the fastest tenth finished in 25:03 or better, the top quarter in 29:43, and half the field in 35:29; the last tenth came in after 51:45.
At the 2026 Half Marathon, the fastest tenth finished in 1:45:52 or better, the top quarter in 1:59:46, and half the field in 2:15:37; the last tenth came in after 2:59:48.
At the 2026 Marathon, the fastest tenth finished in 3:24:09 or better, the top quarter in 3:45:54, and half the field in 4:15:29; the last tenth came in after 5:33:46.
| Age | Women | Men |
|---|---|---|
| Under 20 | 31:08 | 23:58 |
| 20-29 | 27:03 | 22:16 |
| 30-39 | 27:16 | 20:53 |
| 40-49 | 24:02 | 24:48 |
| 50-59 | 29:13 | 26:28 |
| 60-69 | 35:41 | 30:49 |
| 70+ | 40:38 | n/a |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
Where a finish time would have placed in 2026.
Up 1652 percent since 2023.
All events combined, from official results.
From 2024 to 2026, the field went from 275 to 455 finishers, and the median time rose from 35:17 to 35:29.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 455 (+44%) | 35:29 | under 25:03 | 19:13 |
| 2025 | 315 (+15%) | 35:51 | under 27:31 | 0:01 |
| 2024 | 275 | 35:17 | under 26:36 | 20:03 |
From each year's official results for the 5K; virtual options are left out.
About average for Washington 5Ks
The fastest quarter of the 2026 5K field finished under 29:43, against 30:04 in a typical Washington 5K, so times here are about average.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Around April 16 the day usually runs from 41°F at dawn to 65°F in the afternoon, with measurable rain on about 12% of days. Cold snaps dip to 35°F and hot years reach 74°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
What the organizers of Run the River cover on their registration page, in brief.
Schedule and packet pickup
3.1 MILES. START TIME. 8:45am start / 2:00pm course closure. There is no early start option for the 5k. COURSE. Gather up the family, group of friends, or co-workers! This is the perfect distance for all ages to have fun and be active. The…
Schedule and packet pickup
13.1 MILES. START TIME. 8:30am start / 1:00pm course closure. There is no early start option for the half marathon. COURSE. The half marathon is certified by USATF (WA24010RMB) and will be an out and back route with the turnaround located…
Schedule and packet pickup
26.2 MILES. START TIME. 7:30am normal start / 6:30am early start / 2:00pm course closure. If you take the early start option, you will not be eligible for awards and may not have aid station support until you are passed by the lead runners…
Course
For those that aren't wanting the full marathon distance, you can gather up some friends and do the 4-person relay option, which covers the entire marathon course. This is fun for families, a group of friends or coworkers! Get your team…
Parking and travel
Come join us for the 5th annual Run the River, starting at Columbia Park in Kennewick, WA. This road race features a scenic course that travels through the tow ns of Kennewick, Richland, and Pasco all while staying next to the mighty…
Parking and travel
TownePlace Suites by Marriott. Richland at Columbia Point. TownePlace Suites by Marriott Richland Columbia Point is located near the Columbia River. Our premiere extended stay Richland, WA, hotel is centrally located to I-82 exit 5B and…
Organize this race? Add details or a correction
Come join us for the 5th annual Run the River Marathon and Relay, starting at Columbia Park in Kennewick, WA.