Sundae Runday
- Date Sun 16th August 2026
- Time 9:00AM PDT
- Location Seattle, Washington
- Price $11.60 - $38.10
- Races 4 races
- Distances 10km, 5km
Event summary
Get ready for a sweet celebration at the 6th annual Sundae Runday on Sunday, August 16, 2026, in beautiful Seattle, King County! This unique event combines the joy of running with the delight of ice cream, offering participants a chance to complete a 10K, 5K, or a fun 2-mile walk while enjoying a post-race sundae loaded with toppings. The festivities kick off at 8:30 AM with registration and a costume contest, followed by a thrilling Kids Dash before the main races begin at 9:30 AM for the 10K and 9:45 AM for the 5K and 2-mile walk.
The race takes place on a scenic, traffic-free course through Seward Park, allowing runners, walkers, and their furry friends to enjoy the stunning shores of Lake Washington. Everyone will have a blast, with water and whipped cream stations along the route and a post-race ice cream treat for all participants, including your four-legged companions! Don’t miss out on the chance to win awards, capture free event photos, and join in on the fun activities in the kids' tent. Registration is available for all ages, so gather your friends, don your
The race takes place on a scenic, traffic-free course through Seward Park, allowing runners, walkers, and their furry friends to enjoy the stunning shores of Lake Washington. Everyone will have a blast, with water and whipped cream stations along the route and a post-race ice cream treat for all participants, including your four-legged companions! Don’t miss out on the chance to win awards, capture free event photos, and join in on the fun activities in the kids' tent. Registration is available for all ages, so gather your friends, don your
Organiser's Description
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
- Kids 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.
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
- Kids 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.
Races
-
10k
Incl. $3.10 Fee & T-Shirt
Sun 16th August 2026 (9:30AM PDT)
$38.10
-
5k
Incl. $2.80 Fee & T-Shirt
Sun 16th August 2026 (9:45AM PDT)
$32.80
-
2 Mile Walk
Incl. $2.80 Fee & T-Shirt
Sun 16th August 2026 (9:45AM PDT)
$32.80
-
Kids Dash
Incl. $1.60 Fee & T-Shirt
Sun 16th August 2026 (9:00AM PDT)
$11.60
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5895 Lake Washington Blvd S, Seattle, 98118, WA, United States
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