When is Sundae Runday?

Sundae Runday takes place on Aug 16, 2026. That's in 2 months.

Where is Sundae Runday located?

Sundae Runday is held in Seattle, Washington, United States.

What distances are available at Sundae Runday?

Sundae Runday offers the following distances: 10K, 5K, 2.3M.

How do I register for Sundae Runday?

You can register for Sundae Runday through the official registration page.

What is the typical weather for Sundae Runday?

Based on historical data, you can expect temperatures between 59°F and 78°F on race day. There's approximately a 3% chance of precipitation.

Sundae Runday (2.3M-10K) - Aug 16, 2026 | Seattle, WA

Get ready for a deliciously fun experience at the 6th annual Sundae Runday, coming to Seattle, WA, on Sunday, August 16, 2026! This beloved event, held at the stunning Seward Park, offers a perfect blend of fitness and indulgence, welcoming runners and walkers of all ages and paces. Choose your challenge from a 10K, a 5K, or a 2.3-mile walk (they call the extra 0.3 miles "the sprinkles on top!"), with a special Kids Dash for the youngest participants.

The Sundae Runday course is a highlight, offering a fast and flat, traffic-free journey through Seward Park and along the picturesque shores of Lake Washington. Participants will enjoy scenic views of the lake and even Mount Rainier as they make their way on the paved, stroller-friendly route. Hydration is sweet, with water and whipped cream served at a unique "banana split" aid station located halfway through the course, ensuring you're fueled for your finish. The 10K distance includes two aid stations, while the 5K and 2.3M distances each feature one. Typical race day conditions in mid-August include pleasant highs around 78°F and lows around 59°F, with a minimal 3% chance of precipitation.

What truly sets Sundae Runday apart is its vibrant, festive atmosphere and, of course, the promise of ice cream! Every finisher is rewarded with a scrumptious ice cream sundae, complete with a toppings bar, and even pre-registered furry friends receive a doggy treat. Beyond the run, enjoy "Sundae FUNday" activities, including a lively costume contest, kids' games, and free event photos. Packet pickup opens at 8:30 AM, with staggered start times beginning at 9:00 AM, making for a smooth and enjoyable race day for everyone looking to earn their dessert.