Sundae Runday

AUG
16
2026
Sundae Runday in Seattle offers multiple distances on a traffic free course through Seward Park with post-race ice cream for participants and dogs, team discounts, and activities for kids and volunteers.
Sun 16 Aug 2026
10 kilometers 5 kilometers

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Sundae Runday : Seattle, WA

Sundae Runday is the sixth annual community running and walking event held on August 16, 2026 in Seattle at Seward Park and the shores of Lake Washington. The event features a traffic free course through Seward Park and along the lake and is stroller friendly. Dogs are welcome; participants may pre-register their pets to receive a dog treat at the sundae line.

Distances offered:

  • 10K
  • 5K
  • 2 mile (listed as 2.3 miles)
  • Kids Dash (400 yards)

Post-event offerings include ice cream for participants and dogs, a banana split station with water and whipped cream at the halfway point, free event photos, a Kid’s Tent with games and crafts, a Kids Dash with finisher items and ice cream, and a costume contest. Finishers receive a functional finisher item. Teams of six or more receive an automatic discount where the first five participants receive a refund once the sixth person registers. Volunteers receive a race shirt and access to the sundae toppings bar.

Registration fees vary by date with escalating prices and a day-of-event rate. Pricing examples include 10K fees from $35 up to $60 and 5K and 2 Mile fees from $30 up to $55. The event benefits Let Me Run, a program focused on character development for boys through running. Visit the organization's website for the most recent information.

10 km
10k Run
5 km
5k Run
2 Mile Walk
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