October 1

Dave’s Dewey Dash. In memory of David Ashby, who died in October 2019 at the age of 28. 9 a.m. at the Rusty Rudder, Dewey Beach. Benefits Simon’s Heart, dedicated to preventing sudden cardiac arrest in children, teens and young adults. Info: races2run.com

October 8

Dewey Goes Pink, a 5K walk and run to benefit the Delaware Breast Cancer Coalition. 11 a.m. at the Starboard, Dewey Beach. Info: races2run.com

October 15

Ashley Furio Run and Crooked Crawl, to benefit the Children’s Beach House, Lewes. 9 a.m. Run begins and ends at the Crooked Hammock Brewery near Lewes. Non-runners can sign up for the Crooked Crawl, or after-race party, only. Info: seashorestriders.com

October 23

Mariner’s Bethel Trail Run, 7-mile and 5K runs as well as fun walks, to benefit Mariners Bethel United Methodist Church. Post-race party featuring lunch and live music. Meal tickets available for non-runners. At Camp Barnes near Frankford. 1 p.m. Info: 302-539-9510 or seashorestriders.com

Tommy Coveleski 10K and 5K run and walk. Benefits the Sussex Consortium in memory of Coveleski, who was a teacher there and who died in February 2016. 8:30 a.m. at the Rehoboth Ale House, Rehoboth Beach. Info: races2run.com

October 29 and 30

Sea Witch Festival Running Weekend. Saturday, 8 a.m., a half-marathon in Cape Henlopen State Park near Lewes. Sunday, 9 a.m., a 5K in Grove Park, Rehoboth Beach. The ambitious can sign up for the Spooky Double, or both races. Info: seashorestriders.com 

November 5

Run for the Arts 5K, to benefit the Mispillion Art League. 10 a.m. in Bicentennial Park in Milford. Run goes along the Mispillion Riverwalk Trail. Info: seashorestriders.com