Signing up for this low-key 5K doesn't take much effort, but recovering from a stroke does. Celebrate the strength of millions of survivors by running a course through Littleton's lush Hudson Gardens and along the Mary Carter Greenway. Proceeds benefit the Centennial-based National Stroke Association, which focuses on stroke prevention, treatment, rehabilitation, and support for caregivers. Sun 8:30 a.m.
Visit donate.stroke.org .