Pacific Northwest Marathon
Harrisburg, United States of America · Sunday 27 September 2026
The Pacific Northwest Marathon is held annually in September in the Willamette Valley of Oregon, specifically running from Coburg to Harrisburg. The event features several race distances, including a full marathon, half marathon, 10K, and 5K, all primarily on paved roads. The course is notable for its very flat profile, starting at about 400 feet above sea level and gradually descending to around 325 feet, with minimal elevation change and few turns.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:01:37
Time difference: +1.6 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain39m
Elevation High112m
Elevation Low95m
Weather Forecast
High27°C
Low15°C
Chance of Rain0%
How hard is Pacific Northwest Marathon?
Moderateharder than 48% of marathons
Flattest / easiestHardest
On our difficulty model, Pacific Northwest Marathon plays about 6 minutes slower than an average road marathon for a 3:30 runner. It ranks #596 hardest of 1150 marathons we analyse, and #319 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Pacific Northwest Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Pacific Northwest Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:59:49 | −00:11 |
| 3:30:00 | 3:30:42 | +00:42 |
| 4:00:00 | 4:01:37 | +01:37 |
| 4:30:00 | 4:32:33 | +02:33 |
| 5:00:00 | 5:03:30 | +03:30 |
| 5:30:00 | 5:34:29 | +04:29 |
| 6:00:00 | 6:05:29 | +05:29 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Pacific Northwest Marathon 2026 Course Analysis
Pacific Northwest Marathon is a full marathon held in Harrisburg, United States of America. It is scheduled for Sunday 27 September 2026. The course is run on road surface with 39m of total climbing, with its high point near 112m above sea level. For registration and full race details, visit the official Pacific Northwest Marathon website.
Elevation Profile
This is a very flat course, with only 39m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Expected Race Day Weather
Based on historical weather data for September, the expected race day conditions are as follows. Moderate temperatures between 15°C and 27°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a low chance of rain (0%), so dry conditions are likely.
Surface Type: Road
Pacific Northwest Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Pacific Northwest Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Pacific Northwest Marathon fits your goal, these courses play out about the same on our difficulty model.
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