Sundae Runday logo
running

Sundae Runday

Date
August 16, 2026
Distance
10K · 5K · 2 mile walk & more

From the Organizer

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.

Distances & Pricing

10K9:30 AMRegister →
5K9:45 AMRegister →
2 mile walk9:45 AMRegister →
Kids Dash9 AMRegister →

Race Location

About This Sport

From Endurance Grid's Founder

Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.

With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.

Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.

Running

From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Frequently Asked Questions (FAQs)

What is the Sundae Runday?
Sundae Runday is a running event held in Seattle, WA. Learn more about the different endurance sports here.
When and where is the Sundae Runday?
Sunday, August 16, 2026 in Seattle, WA at 5895 Lake Washington Blvd S, Seattle, WA. Check the official event page for exact start times and wave schedules.
How do I register for the Sundae Runday?
Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.

Sundae Runday

Aug 16, 2026

Register →