Spectator Guide · Lake Sammamish Half Marathon

Lake Sammamish Half Marathon Spectator Guide

October 29, 2026 · 3 min read

Large half marathon in Redmond. Base at the start/finish area.

In this guide

At a glance

Date
Saturday, March 6, 2027
Location
Redmond, WA
Distances
Half Marathon
Field size
About 2,500 runners
Registration
runsignup.com

The Lake Sammamish Half Marathon is a large field event in Redmond. Spectators should base at the start/finish area.

Best places to stand

  • Start/finish: Redmond start and finish area.
  • Course: sidewalks along the published route.

Getting there

Use the official parking and closure information. Arrive early.

Where to meet

Agree on a landmark outside the finish chute.

Keep exploring

Common questions

When is the Lake Sammamish Half Marathon?
Saturday, March 6, 2027.
How do I register for the Lake Sammamish Half Marathon?
Registration is handled by the organizer at runsignup.com.