Portland Marathon
Portland, United States of America · Monday 4 October 2027
The Portland Marathon takes place in Portland, Oregon, with the start and finish lines located at Portland's Waterfront Park near the intersection of SW Naito Parkway and Salmon Street, on the banks of the Willamette River. This event features multiple race formats, including a full marathon, half marathon, and a 10K.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:43:32
Time difference: +43.5 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain266m
Elevation High54m
Elevation Low9m
Weather Forecast
High19°C
Low11°C
Chance of Rain1%
How hard is Portland Marathon?
Very Difficultharder than 92% of marathons
Flattest / easiestHardest
On our difficulty model, Portland Marathon plays about 43 minutes slower than an average road marathon for a 3:30 runner. It ranks #90 hardest of 1151 marathons we analyse, and #39 of 576 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 Portland 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 Portland Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:33:09 | +33:09 |
| 3:30:00 | 4:08:23 | +38:23 |
| 4:00:00 | 4:43:32 | +43:32 |
| 4:30:00 | 5:18:38 | +48:38 |
| 5:00:00 | 5:53:46 | +53:46 |
| 5:30:00 | 6:28:55 | +58:55 |
| 6:00:00 | 7:04:08 | +1:04:08 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Portland Marathon 2027 Course Analysis
Portland Marathon is a full marathon held in Portland, United States of America. It is scheduled for Monday 4 October 2027. The course is run on trail surface with 266m of total climbing, with its high point near 54m above sea level. For registration and full race details, visit the official Portland Marathon website.
Elevation Profile
With 266m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for October, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 11°C to 19°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (1%), so dry conditions are likely.
Surface Type: Trail
Portland Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are usually slower than the road equivalent - often by 10-20% - because of uneven footing, technical sections, and frequently steeper gradients, though a smooth, non-technical or downhill trail can run faster than that suggests. Trail-specific shoes with good grip are recommended.
Looking for an easier marathon or a tougher challenge? You can also compare Portland Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Portland Marathon fits your goal, these courses play out about the same on our difficulty model.
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