HalfRuns
2027 San Juan Island Half

2027 San Juan Island Half

The San Juan Island Half trades pavement monotony for Salish Sea views and three honest climbs.

Race Date

May 8, 2027

Location

Friday Harbor, WA

Standout75

Quick facts

Date
Saturday, May 8, 2027
Location
Friday Harbor, Washington
Distance
Half marathon (13.1 mi)
Course
Point to Point
Terrain
Road
USATF certified
Not listed
Finishers on record
4,397

Highlights

Good For

Destination Worthy

Atmosphere

Well Supported

Course

Scenic Route

The Experience

The San Juan Island Half starts on the sand at South Beach, inside San Juan Island National Historic Park, and ends at Jackson Beach just south of Friday Harbor. In between, the course opens onto the Salish Sea, the neighboring islands, and the Olympic Mountains across the water.

Don't let the island pace fool you: the route rolls through three main climbs and roughly 900 feet of gain — honest work rather than a flat-out PR chase. Aid stations land every two to three miles with water, Tailwind, and GU; the race is cupless, so carry your own bottle.

Now 22 editions deep, the race draws about 384 finishers and runners from some 19 states, and roughly 14 percent come back for another lap of the island. Winning times near 86 minutes hint at a field with real legs, but the weekend is mostly about the place: ferry over, run, then stay to explore with family.

Race-provided description

The San Juan Island Half takes place on San Juan Island, starting at South Beach inside San Juan Island National Historic Park and finishing at Jackson Beach, just south of Friday Harbor. The course is scenic with views of the other islands, Olympic Mountains, and the Salish Sea, featuring three main climbs and approximately 900 feet of elevation gain. Aid stations are every 2-3 miles with water, Tailwind Electrolytes, and GU gels. The race is cupless, so participants must bring their own hydration bottle or pack.

Course Info

Course Type

Point to Point

Terrain

road

Scenery

Coastal, Mountain

Difficulty

Rolling Hills

Quality Score

Standout75
Methodology
Heritage20/20

22 years running

Size13/15

~384 finishers a year

Momentum5/5

growing or steady

Loyalty14/20

14% returning runners

Course & details5/15

6 timing sources

National draw8/10

runners from 19 states

Front-pack speed1/5

winner 1:26:10

Weather10/10

typical high 57°F

Race Day Weather

5-year historical avg

Start (Low)

46°

Afternoon (High)

57°

Ideal racing weather — cool and comfortable

0.0"

Precipitation

12 mph

Wind

78%

Humidity

Historical Finish Times

How 4,397 finishers actually crossed the line across 22 years.

Most recent

2026

Total finishers

4,397

Median time

2:19:15

Latest turnout

384

States

39

10%
25%
75%
90%
1:15p50 median ≈ 2:155:05

Turnout by year

2018–2026

'18'19'21'22'23'24'25'26
See full results

Hover the histogram to inspect specific finish times.

Frequently asked

When is the 2027 San Juan Island Half?

The 2027 San Juan Island Half is held on Saturday, May 8, 2027.

Where does the 2027 San Juan Island Half take place?

It takes place in Friday Harbor, Washington.

What distances does the 2027 San Juan Island Half offer?

The half marathon (13.1 miles).

Is the 2027 San Juan Island Half course flat and good for a PR?

The 2027 San Juan Island Half is a rolling hills, point to point course.

How many people run the 2027 San Juan Island Half?

HalfRuns has finish records for 4,397 runners who have completed the 2027 San Juan Island Half.

HalfRuns editorial — independent, no paid placement.

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