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Seattle Marathon: Summer Events

Seattle Marathon's Summer Events offer a fast, certified course with a strong local following.

Race Date

Jun 27, 2026

Location

Seattle, WA

Standout78

Quick facts

Date
Saturday, June 27, 2026
Location
Seattle, Washington
Distance
Half marathon (13.1 mi) + 26.2M
Course
Point to Point
Terrain
Road
USATF certified
Yes
Finishers on record
111,859

Highlights

Good For

PR FriendlyBQ Relevant

Atmosphere

Spectator SupportWell Organized

Course

Fast Flat

The Experience

The Seattle Marathon Summer Events have carved out a significant niche since their first running in 1994, now celebrating over two decades of racing. With 27 editions on record, the event has seen consistent growth, attracting a median of approximately 4,434 finishers in recent years. This loyalty is underscored by a repeat-runner rate of around 23%, indicating a dedicated community that returns year after year.

The course is a certified, fast-paced route, designed to favor strong performances. While the specific details of the summer event's course are not detailed, the Seattle Marathon is known for its flat profile, with minimal elevation gain and loss, making it a prime location for runners targeting personal bests or Boston Marathon qualifying times.

The event typically takes place in late fall, though the "Summer Events" designation might imply a different timing or a series of races. Runners can expect cool, crisp Seattle weather, often with overcast skies and a moderate breeze, contributing to a comfortable racing environment. The atmosphere is generally one of focused competition, with a solid base of local support and a growing field depth.

Race-provided description

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Logistics

Race Day

Saturday, June 27, 2026

Start Time

TBA

Start Location

Seattle, WA

Directions

Course Info

USATF Certified

Course Type

Point to Point

Terrain

road

Surface

Paved

Difficulty

Ultra-Flat

Net Drop/km

+1.33 m

Separation

5.3%

Also Offers

26.2M

USATF Certified Course

WA25020RMB · Seattle Half Marathon

Net downhill course — fast finishing times are common.

Quality Score

Standout78
Methodology
Heritage20/20

27 years running

Size15/15

~4,434 finishers a year

Momentum5/5

growing or steady

Loyalty20/20

23% returning runners

Course & details8/15

USATF certified · 2 timing sources

National draw0/10

runners from 1 state

Front-pack speed5/5

winner 1:06:44

Weather5/10

typical high 47°F

Race Day Weather

5-year historical avg

Start (Low)

39°

Afternoon (High)

47°

Cool conditions — dress in layers, perfect for fast times

0.2"

Precipitation

12 mph

Wind

86%

Humidity

Historical Finish Times

How 111,859 finishers actually crossed the line across 27 years.

Most recent

2025

Total finishers

111,859

Median time

2:09:00

Latest turnout

4,434

States

51

10%
25%
75%
90%
0:50p50 median ≈ 2:1010:20

Turnout by year

20182025

'18'19'20'21'22'23'24'25
See full results

Hover the histogram to inspect specific finish times.

Frequently asked

When is the Seattle Marathon: Summer Events?

The Seattle Marathon: Summer Events is held on Saturday, June 27, 2026.

Where does the Seattle Marathon: Summer Events take place?

It takes place in Seattle, Washington.

What distances does the Seattle Marathon: Summer Events offer?

The half marathon (13.1 miles), plus 26.2M.

Is the Seattle Marathon: Summer Events course flat and good for a PR?

The Seattle Marathon: Summer Events is a ultra-flat, point to point course. The course is USATF-certified, so finish times can be used for qualifying.

How many people run the Seattle Marathon: Summer Events?

HalfRuns has finish records for 111,859 runners who have completed the Seattle Marathon: Summer Events.

HalfRuns editorial — independent, no paid placement.

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