Shamrock Run

Race Date

Mar 14, 2027

Location

Portland, OR

Logistics

Race Day

Sunday, March 14, 2027

Start Time

TBA

Start Location

Portland, OR

Directions

Course Info

USATF Certified

Course Type

Loop Course

Terrain

road

Difficulty

Ultra-Flat

Net Drop/km

+0.05 m

Separation

2.3%

Also Offers

15K8K5K run | kids run

USATF Certified Course

OR26002JH · Expires 2036 · Shamrock Half Marathon

Relatively flat with minimal net elevation change. Loop course — start and finish are close together.

View USATF Course Map (PDF)

Historical Performance

Median Finish

2:04:31

9:30/mi

Winning Time

1:08:59

5:16/mi

Finishers (2025)

2,757

States Represented

39 / 50

Gender Split

40% Female60% Male

Finish Time Distribution

1:053:40

FASTER 25%

1:50:53

MEDIAN

2:04:31

SLOWER 25%

2:21:34

Average runner age: 36

See Full Results

Race Day Weather

5-year historical avg

Start (Low)

36°

Afternoon (High)

53°

Ideal racing weather — cool and comfortable

0.2"

Precipitation

10 mph

Wind

80%

Humidity

Explore More Journeys

Can't make it to Portland? Discover other experiences that match your running style.

Search All Races

Bend, OR • Mar 28

Bend Marathon and Half

Redmond, OR • Apr 4

Incline Vista

Buxton, OR • Apr 5

Stub Stewart Trail Challenge

Never miss
another
finish line.

Join our community of 350K+ half marathon runners. Get notified about new races, registration opens, and early bird pricing across all 50 states.