Question 1

How many half marathons in Oregon are there between 2026 and 2027?

Accepted Answer

There are 6 upcoming half marathons in Oregon listed on 42Cal, from October 2026 through June 2027. The count updates automatically as races are added.

Question 2

When is the best time for half marathons in Oregon?

Accepted Answer

Most of the 6 races on this list (4 of them) fall in January and March and April 2027.

Question 3

Which race in this list has the least elevation gain?

Accepted Answer

Cascade Half Marathon in Turner is the flattest race on this list, with about 100 ft of total elevation gain — based on the 6 of 6 races here with elevation data on file.

Question 4

How current is this list?

Accepted Answer

This list was last refreshed on September 19, 2026. Race dates, locations, and course details are updated continuously as organizers confirm changes, so this page reflects the calendar as of that date.

Race	Date	Location	Distance	Elevation	Status
Portland Marathon	October 2026	Portland, United States	Marathon	266 m	Registration Open
Cascade Half Marathon	January 2027	Turner, United States	Half Marathon	100 ft	Registration Open
Portland Shamrock Run	March 2027	Portland, United States	Half Marathon	250 ft	Registration Open
Bend Marathon	April 2027	Bend, United States	Marathon	354 m	Registration Open
Eugene Marathon	April 2027	Eugene, United States	Marathon	120 m	Opening Soon
Newport Marathon	June 2027	Newport, United States	Marathon	150 ft	Opening Soon

Half Marathons in Oregon 2026–2027

Upcoming Half Marathons in Oregon 2026–2027

Portland Marathon

Cascade Half Marathon

Portland Shamrock Run

Bend Marathon

Eugene Marathon

Newport Marathon

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