Sun, Aug 16, 2026

Sundae Runday

Seattle, WA

Registration openAnnual since at least 2019

10K5K2.3 Miles400 Yards

Entry is $50 now and rises to $55 after Aug 16, 2026, so registering before then saves $5.

About the Sundae Runday

The course runs through Seward Park along the shores of Lake Washington, traffic-free and stroller-friendly. Dogs are welcome on the route, and there is a whipped cream station at the halfway point. The whole thing is built around the ice cream sundae bar waiting at the finish, with toppings for runners and a treat line for dogs too.

A costume contest runs before the start, and there is a kids' area with games and crafts. Registration and packet pickup open race morning, so you can arrive, get set up, and still have time before the first wave goes off.

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Finish-Time Stats

Going by the 2025 results, this is a small, friendly field, and the spread of finish times is wide, so this is a mostly recreational race rather than one for club runners.

5K · 2025 results

255finishers

18:40winner

36:30median

1:30:10cutoff

Top 3: Laura Breymann (18:40) · Kyle Rickards (19:00) · David Rowan (20:13)

10K · 2025 results

82finishers

35:54winner

1:04:52median

2:09:06cutoff

Top 3: Steve Ice Cream (35:54) · Charlotte Maines (40:06) · William Bauer (44:01)

2.3 Miles · 2025 results

19finishers

34:55winner

47:49median

1:08:05cutoff

Top 3: Jingjing Xia (34:55) · Dani Frederick (36:20) · Eliza Truitt (41:16)

The Sundae Runday has been held every year since at least 2019. That is as far back as RunSignup's records for this race go, so it may well be older.

Where Would You Finish?

Enter a finish time to see where it lands against the most recent 5K results.

Median

See how your time stacks up nationally →

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.

Distances & Start Times

10K8/16/2026 09:30$55

5K8/16/2026 09:45$50

2.3 Miles8/16/2026 09:45$50

400 Yards8/16/2026 09:00$10

Going for a Time?

Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.

Plan Your Trip

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Common Questions About the Sundae Runday

Will I finish last at the Sundae Runday?

Almost certainly not. Half the 5K field finished slower than 36:30, and the last recorded finisher came in around 1:30:10, so there is a long tail of runners behind the middle of the pack. Most fields are far slower than people expect.

Is the Sundae Runday a good first 5K?

A field of 255 is big enough that you will have company at your pace without feeling lost in a crowd. There is no qualifying time, and the finish-time spread above shows how varied the field really is. If it is your first 5K, that spread matters more than the winner's time.

How competitive is the Sundae Runday?

The 5K winner ran 18:40 while the median finisher took 36:30. That spread points to a broad, mostly recreational field rather than a race dominated by club runners.

Where can I train for the Sundae Runday?

Join a local run club. Club Northwest, Seattle Running Club, West Seattle Running Club and others in Seattle welcome runners of all paces, and a weekly group run is the most reliable way to hold a training block together.