Run VibesBeta

Race profile

Earth Day Run

5K · 10K · 15K · 9.3 mi · Half Marathon

Apr 18, 2026 · Seattle, Washington, US

Listed Apr 15, 2025

Cause DrivenWashington5KFunSteady Effort

The read

Run Vibes summary

AI-assisted

At a glance (AI-assisted text)

Celebrate Earth Day with a run in Seattle, offering distances from 5K to Half Marathon for all fitness levels.

The vibe (AI-assisted text)

The Earth Day Run is all about celebrating our planet while enjoying a good run. Expect a community-focused atmosphere where runners of all paces come together to support environmental awareness. It's less about setting personal bests and more about participation and shared purpose, making it a welcoming event for everyone.

Best for (AI-assisted text)

This event is ideal for runners looking to combine their passion for running with a meaningful cause. It's perfect for families, groups of friends, or individuals who want to participate in a well-organized event that supports environmental awareness. If you enjoy a relaxed, community-oriented race, this is for you.

Race day (AI-assisted text)

While specific details are sparse, you can generally expect a straightforward race day experience for a multi-distance event. Packet pickup will likely be efficient, and the start line will probably have a friendly buzz. With distances from 5K to a Half Marathon, you'll see a mix of casual walkers, joggers, and more serious runners, creating a diverse pace environment. The focus will be on enjoying the outdoors and the collective spirit of Earth Day.

Personality (AI-assisted text)

The Earth Day Run has a warm, inclusive personality, centered around a positive message. It's the kind of event where smiles are plentiful, and the shared goal of celebrating Earth Day creates a friendly, supportive atmosphere. You'll find a mix of people, all united by a love for running and the environment.

Weather snapshot (AI-assisted text)

Running in Seattle in mid-April means you should prepare for variable spring weather. Expect cool temperatures, potentially ranging from the mid-40s to low 60s Fahrenheit. There's always a chance of rain in Seattle, so dressing in layers and having waterproof gear handy would be a smart move.

Terrain & course feel (AI-assisted text)

No specific terrain details are provided, but as a multi-distance run in Seattle, it's likely to be on paved roads or park paths. Expect a generally urban or park-like setting, with potential for gentle inclines typical of city routes rather than significant elevation changes.

Signals we noticed (from listing text, AI-assisted)

  • Earth Day in title
  • Multiple distances offered (5k, 10k, 15k, Half Marathon)
  • Located in Seattle, WA
  • Organizer website linked: magnusonseries.org
  • First occurrence year 2025

This section is produced with AI from the listing we have on file—think of it as a quick orientation, not a rulebook. Organizers can update start times, courses, policies, and perks at any time, so when something really matters, please lean on their official race page for the latest. We don’t independently verify every detail against live organizer updates; we’re here to help you get a feel for the event and decide if you want to dig deeper.

Original listingFull description from sourceExpand the official listing text (unchanged)

Please visit https://magnusonseries.org/ for all the details. 

More races

More events in Washington, with a similar vibe, and comparable distances or challenge.

Medal Madness 5K, 10K, & 13.1M at Camas, WA (13)

5K · 10K · Half Marathon

3/28/2026 · Camas, WA

Listed Oct 29, 2025

Register
FunPush PotentialBeginner-friendlyAwardsMedals

Join the Medal Madness in Camas, WA, for a looped 5K, 10K, or Half Marathon featuring finisher medals, costume fun, and series points.

Medal Madness 5K, 10K, & 13.1M at Olympia, WA (13)

5K · 10K · Half Marathon

3/28/2026 · Olympia, WA

Listed Sep 16, 2025

Register
Run Vibes summarySummarization pending

AI summarization pending

We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.

Full listing on the race page · official details from the source

Medal Madness 5K, 10K, & 13.1M at Spokane, WA (13)

5K · 10K · Half Marathon

3/28/2026 · Spokane, WA

Listed Nov 30, 2024

Register
Run Vibes summarySummarization pending

AI summarization pending

We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.

Full listing on the race page · official details from the source

Leif to Leif 5k Fun Run/Walk

Fun Run · Walk · 5K

3/28/2026 · Seattle, WA

Listed Feb 17, 2020

Register
Run Vibes summarySummarization pending

AI summarization pending

We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.

Full listing on the race page · official details from the source

Whitehorse Half Marathon

Half Marathon · Marathon

3/28/2026 · Arlington, WA

Listed Jan 5, 2026

Register
Run Vibes summarySummarization pending

AI summarization pending

We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.

Full listing on the race page · official details from the source

Yakima River Canyon Marathon and Half-Marathon

Marathon · Half Marathon · 2 mi

3/28/2026 · Yakima, WA

Listed Sep 22, 2023

Register
Run Vibes summarySummarization pending

AI summarization pending

We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.

Full listing on the race page · official details from the source

Daffodil 8K

8K · 5 mi

3/29/2026 · Puyallup, WA

Listed Dec 31, 2025

Register
Run Vibes summarySummarization pending

AI summarization pending

We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.

Full listing on the race page · official details from the source

Miles for Mamas 5k

5K · Walk

3/29/2026 · Seattle, WA

Listed Nov 28, 2025

Register
Run Vibes summarySummarization pending

AI summarization pending

We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.

Full listing on the race page · official details from the source