Sundae Runday
About this race
Join us for the 6th annual Sundae Runday, where we combine our love of running with a love for ice cream! Finish your 10K, 5K run, or 2 mile (plus a little bit) walk with a delicious ice cream sundae with all the toppings!
Race Day Schedule:
8:30AM – Registration and Packet Pickup Opens
9:00AM – Costume Contest
9:15AM – Kids Dash
9:30AM – 10K Start
9:45AM – 5K and 2 Mile start
10:00AM - Ice cream time!
10:30am - Awards
Sundae FUNday Festivities:
- Post-race ice cream treats for all, including your four-legged friends!
- Finisher's item, it will be something fun, and functional!
- Water and whipped cream at the banana split halfway mark!
- Chance to beat the ice cream
- Free Event Photos
- Kid’s Tent with Games & Crafts
- Kids Dash with finisher items and ice cream
- Costume Contest - put on your Sundae best!
- Traffic free course through Seward Park and the shores of Lake Washington.
- Stroller friendly event
- Furry Friends: Dogs are welcome to run with us! Check the box at registration to pre-register your pup and guarantee a doggy treat in the Sundae line!
Registration Info:
10K
January 1 - 9: $35
Jan 10 - May 16: $45
May 17 - July 16: $50
July 17 - August 15: $55
Day of Event Registration - $60
5K & 2 Mile Walk
January 1 - 9: $30
Jan 10 - May 16: $40
May 17 - July 16: $45
July 17 -August 15: $50
Day of Event Registration - $55
- Kids 15 and under - $25 (includes shirt and ice cream)
- Kids dash - $10 - (includes ice cream and finisher's ribbon)
- Register by July 15 to guarantee your shirt size.
Teams of 6 or more get an automatic discount. Once the 6th person signs the first 5 participants get a refund!
Volunteer with us and get a race shirt, and a trip through the sundae toppings bar without all that pesky running!
Benefiting Let Me Run - Let Me Run is building a new generation of men by teaching boys to be their best selves through a character development program powered by running.
Pick your distance
Running
10K
5K
Walking
2 mile walk
Typical race-day weather
Based on 11 years of Open-Meteo archive data for this event's race dates in Seattle, plus the 3 days either side.
The sun rises at 6:07 AM and sets at 8:20 PM local time (PDT) in Seattle on August 16, 2026 — 14h 12m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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2026 results — Sundae Runday
343 finishers across 3 distances · leading places in the 10K
| Place | Name | Time | Pace |
|---|---|---|---|
| 1 | Steve Ice Cream | 35:02 | 5:38 /mi |
| 2 | Cory Mankin | 42:49 | 6:53 /mi |
| 3 | William Bauer | 43:42 | 7:02 /mi |
| 4 | Kyle de la Cena | 44:26 | 7:09 /mi |
| 5 | David Borowitz | 44:58 | 7:14 /mi |
Every finisher is on the results page, filterable by distance, gender and age group.
All results by year
Other races near Seattle
Different organizers, within 40 miles, in the next three months
Run Scared
2026 Seattle Ghost Marathon, Half & 50K
Green Lake Sole 5K Run
Alaska Airlines Dawg Dash 5K/10K
🏃 Plan Your Next Race in Seattle
Find upcoming events by distance:
- Seattle 5K Races 102 races
- 10K Run Events in Seattle 56 races
- Seattle Half Marathons 44 races
- Seattle Running Calendar 2026 129 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 133 Seattle events
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