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Seattle Marathon 2025: New Course, Traffic, and What to Expect | FA Cup Quarter-Final Draw: Man City vs. Liverpool Headlines | Mikal Bridges Struggles with Inconsistency, Plagued by Foul Trouble | Nazar's PPG Wins It in Overtime: Blackhawks Beat Mammoth | Pacers-Clippers Trade: Mathurin and Zubac's Impact | Troy Wins Sun Belt Tournament, Earns NCAA Berth | RMU Men's Hockey Advances to AHA Semifinals After Tense Series | Oregon State Basketball: The End of the Wayne Tinkle Era | Mexico vs. USA: Intense Rivalry at the World Baseball Classic 2026 | Seattle Marathon 2025: New Course, Traffic, and What to Expect | FA Cup Quarter-Final Draw: Man City vs. Liverpool Headlines | Mikal Bridges Struggles with Inconsistency, Plagued by Foul Trouble | Nazar's PPG Wins It in Overtime: Blackhawks Beat Mammoth | Pacers-Clippers Trade: Mathurin and Zubac's Impact | Troy Wins Sun Belt Tournament, Earns NCAA Berth | RMU Men's Hockey Advances to AHA Semifinals After Tense Series | Oregon State Basketball: The End of the Wayne Tinkle Era | Mexico vs. USA: Intense Rivalry at the World Baseball Classic 2026

Sports / Running

Seattle Marathon 2025: New Course, Traffic, and What to Expect

The Seattle Marathon is back on November 30, 2025, with a brand-new course that's generating buzz in the running community. The 55th annual UW Medicine Seattle Marathon features a redesigned route, moving the finish line to Pier 66 and wind...

New Seattle Marathon course could slow traffic near waterfront Sunday
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Seattle Marathon 2025: New Course, Traffic, and What to Expect Image via KING5.com

Key Insights

  • The Seattle Marathon 2025 introduces a new course, with the finish line relocated to Pier 66 due to redevelopment at Memorial Stadium.
  • The full and half marathons start at Fifth Avenue North and Harrison Street near Seattle Center.
  • The full marathon route includes Capitol Hill, the University of Washington, Fremont, and Myrtle Edwards Park before descending to the waterfront.
  • The half-marathon route cuts out Capitol Hill and the University of Washington, instead looping along the Ship Canal Trail towards Ballard before heading back to Elliott Bay.
  • Over 50 streets will be affected by the marathon, with roads reopening progressively throughout the day, aiming for full reopening by 2:30 p.m.

In-Depth Analysis

The Seattle Marathon 2025 presents a significant change with its new course design. The finish line's move to Pier 66 &ref=yanuki.com is a major shift, driven by the redevelopment of Memorial Stadium. The full marathon &ref=yanuki.com starts at Fifth Avenue North and Harrison Street, taking runners through diverse neighborhoods like Capitol Hill and Fremont, offering scenic views of the Washington Park Arboretum and the University of Washington campus. The half-marathon route &ref=yanuki.com offers its own unique path, focusing on the Ship Canal Trail and Elliott Bay.

**Road Closures and Traffic Impact:** Participants and attendees should anticipate traffic delays due to numerous road closures. Roads in the eastern part of the full marathon route are expected to reopen earliest, with the entire course aimed to be clear by 2:30 p.m. Detailed information on specific closures can be found at seattlemarathon.org/traffic-transportation&ref=yanuki.com.

**Weather Forecast:** The weather forecast for the race day predicts dry conditions with partly sunny skies and a high of 47°F, making for favorable running weather.

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FAQ

Where does the Seattle Marathon 2025 start and finish?

Both the full and half marathons start at Seattle Center (Fifth Avenue and Harrison Street) and finish at Pier 66.

What are the registration costs for the races?

Registration for the full marathon is $212.24, the half-marathon is $190.69, and the kids marathon is $34.52.

Where can I find a detailed map of the new course?

An illustrated runner’s guide and course map can be found in The Seattle Times and on seattlemarathon.org&ref=yanuki.com.

Takeaways

  • Be prepared for traffic delays and plan your route accordingly.
  • Take advantage of the drier weather conditions for a more enjoyable race or spectating experience.
  • Familiarize yourself with the new course layout to navigate the race effectively.
  • Check the Seattle Marathon website (seattlemarathon.org&ref=yanuki.com) for the latest updates on road closures and event details.

Discussion

What are your thoughts on the new Seattle Marathon course? Share your experiences and insights in the comments below!

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Disclaimer

This article was compiled by Yanuki using publicly available data and trending information. The content may summarize or reference third-party sources that have not been independently verified. While we aim to provide timely and accurate insights, the information presented may be incomplete or outdated.

All content is provided for general informational purposes only and does not constitute financial, legal, or professional advice. Yanuki makes no representations or warranties regarding the reliability or completeness of the information.

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Always do your own research (DYOR) before making any decisions based on the information presented.