Event Description

From its humble beginnings in 1970 when a group of friends from the University of Washington decided to hold their own marathon, the Seattle Marathon Family of Events has grown into the largest combination marathon/half marathon in the Northwest and one of the top ten largest in the U.S. That first marathon 48 years ago sported 38 runners. This year, 15,000 participants are expected for the marathon and half marathon walking and running events. Join us November 26th for Seattle's Original Hometown Marathon.

Rolling course with hilly sections and scenic views of Downtown Seattle and Lake Washington. 26.2 and 13.1 mile courses. For your safety, absolutely no dogs, bikes, inline skates or strollers allowed on the course.


The course starts at 5th Avenue, between Harrison and Broad, in front of the Experience Music Project. Entrants will travel through downtown streets, along the shores of beautiful Lake Washington, through the Arboretum and back to Seattle Center.


Marathon entrants will follow the same course as the Half Marathoners with an added section looping around scenic Seward Park.


Athletes using a wheelchair or hand crank are welcome to compete in the Marathon and Half Marathon races. Both courses are fully paved and provide wheelchair/hand crank athletes the opportunity for unbridled competition. The lead wheelchairs/hand cranks will have an escort throughout the race. Competitors must wear hard shell helmets and wheelchairs/hand cranks must be adequately equipped for safety. Wheelchair/hand crank competitors should especially note the risks regarding the nature of the course such as bollards and the possibility of other traffic on the course.


All event routes will be opened to regular vehicular traffic at 2:15pm. This allows for a seven-hour Marathon Walk finish and a six-hour Marathon Run finish. There will be limited on-course aid stations, Course Marshals and police support after the course closes. Participants may continue along the course after the official closure by obeying all standard traffic control devices. Finish Line staff and essential services will remain until every athlete has completed the event.


Each mile-marker will be clearly labeled on the race courses. Split times will be called at each marker (as permitted by the number of volunteers). Half marathon split times will be electronically recorded and available in marathon results.


Water/Aid stations are approximately every two miles. There are 15 Water/Aid Stations on the full marathon course and 10 on the half marathon course. Refer to the course map for locations.

Talking Rain water and Gatorade Endurance Formula sports drink will be available at each station, in addition to basic medical items and Honey Bucket portable toilets. GU will be available at water stations 5, 6 & 10. Each water / aid station will remain supplied until the last participant has passed..

TalkingRain is the official water sponsor of the Amica Insurance Seattle Marathon 2018. For more information about TalkingRain water, please visit www.talkingrain.com.

Lemon-Lime Gatorade Endurance Formula will be available on course at all aid stations. Endurance Formula has nearly two times the sodium and three times the potassium of traditional Gatorade. Newly reformulated, it now containes no artificial flavors or sweeteners and has a new, lighter flavor. Learn more about the Gatorade Endurance line of products at www.gatoradeendurance.com.


Provided by our Official Medical Coverage Sponsor, UW Medicine. If medical assistance is required on the race course, contact one of the orange-capped radio operators, who will be able to summon emergency assistance or van transportation if required. If you drop out, please notify an aid station attendant, radio operator or anyone inside the information booth in the Victory Recovery Area so the information can be relayed to the event support staff.

All Marathon and Half Marathon run and walk participants receive a long-sleeved technical fabric shirt and goody bag. Finishers receive a finisher’s medal, certificate of completion, result issue, and individual care, both on the course and following—including food, beverage, space blanket, and availability of medical care, acupuncture, massage and chiropractic care.


The Washington Sports Massage Team (WSMT), Bastyr University and Washington State Chiropractic Association (WSCA) will be located in the Victory Recovery Area.

WSMT will provide a 15-minute professional sports massage to finishers for a $18 fee. Massages can be purchased on site or in advance using the entry form.

Bastyr University will be providing Acupuncture to finishers for free. There is no need to sign up for Acupuncture in advance. Just go to the Acupuncture booth on Race Day for walk-up service.

WSCA will be assisting UW Medicineat the finish line as well as providing chiropractic care in the Victory Recovery Area.


Clothing Check is located in Memorial Stadium's north side tunnel, directly behind the upper stadium seats. Clothing Check will be available to race participants starting at 6:30 am. Volunteers will be available to store and retrieve your bag. All bags must be clearly marked with your bib number. Under no circumstances should you bring valuables, as the Seattle Marathon Association is not responsible for lost or stolen articles. Finishers taking 6 1/2 hours or longer may claim their bag at the Finish Line.


Any items found on the course will be brought to Clothing Check. Please see a clothing check volunteer if you have lost or found an item. All lost and found clothing not claimed at the end of race day will be donated to charity. For information on lost and found items of value, please contact the Seattle Marathon Association Office at 206.729.3660 M-F between 9 am and 4 pm.


MarathonFoto is the Official Photographer of the Seattle Marathon 10K Race. Be sure to smile for their cameras as you run or walk along the race course! MarathonFoto will photograph you multiple times throughout the race course as well as before and after the race. Smile when you see their photographers in the bright yellow vests and make sure your bib number is clearly centered and visible so they will be able to identify you. MarathonFoto will also be at the finish line area taking photos to help you celebrate your accomplishment. View and order your photos within 1 to 3 days after the race at www.marathonfoto.com.


All events will be timed using the ChronoTrack tag technology. Each participant is given a special, unique transponder that will be used to record your start and finish time. A B-Tag timing device is incorporated into your race bib. All results are based on Gun-time; however, you will also receive an "actual time," as well as split times along the course.

In order to receive an accurate time, please confirm that throughout the race your bib is:

Clearly visible on the front of the torso
Unaltered and unmodified — Do not fold or wrinkle
Pinned in all four corners
Not covered by jackets, runne belts, water bottles, etc.
The B-Tag is disposable — no need to return your tag after the race.

Unofficial results will be posted in the Victory Recovery Area (Seattle Center Exhibition Hall) and on the Results page on this website twenty minutes after the first runner crosses the finish line. Friends and family can check the website for up-to-the-minute race results.
Not wearing the bib/tag will result in missing split times, which may result in disqualification. An official Results Issue with complete Marathon and Half Marathon results will be available online in December.

Any change requests regarding the unofficial results must be submitted within three days after the race by contacting the Seattle Marathon Association office. Failure to contact us within three days may result in your times not being listed in our web results or in the Results Issue.


Full Marathon miles: 4.5, 8.1, 13.1, 20 and Finish

Half Marathon miles: 4.5, 6.5 and Finish


Each Marathon Run, Half Marathon Run, Marathon Walk and Half Marathon Walk finisher will receive a commemorative finisher’s medal at the finish line. In addition, special awards are given to the top finishers for both the Marathon Run and Half Marathon Run in the following categories.

Overall Awards: Presented to the top three men and women finishers in both the Marathon and Half Marathon events.

Age Division Awards: Presented to the top ten men and women in each age division in both the Marathon and Half Marathon as follows: 19 and under, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 75-79, 80-84, 85 and over.

Masters Division Awards: Presented to the fastest male and female finishers, age 40 and over, in both events.

Active Military Awards: Presented to the top three male and female finishers in both events who are actively serving in the U.S. military.

Walk Events: Please note that the Marathon Walk and Half Marathon Walk will be timed but are not intended to be race walking competitions as set forth by the USATF. No awards will be presented for these events. Finishers will have their achievement commemorated with an alphabetical listing — including finish time — in the Results Issue.

Award Presentation: Overall 1st – 3rd place awards will be presented to winners at the finish line. Age division and other awards will be mailed after the event. All awards not picked up on race day will be mailed.

Please note that the Marathon Walk and Half Marathon Walk will be timed but are not intended to be race walking competitions as set forth by the USATF. No awards will be presented for these events.

Event Location

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