April 20

Race for Open Space 5K and 1-mile walk. 9 a.m. start time at George H.P. Smith Park, Lewes. Info: seashorestriders.com Walk for Autism. 8 a.m. at Hudson Fields near Milton. Benefits Autism Delaware. Info: autismdelaware.org/walk

April 21

Oy Vey 5K and 1-mile walk. 9 a.m. start time at the Seaside Jewish Community building, near Rehoboth Beach. Benefits the Seaside Jewish Community. Info  seashorestriders.com

April 27

Scott Trot 5K run and walk. 9 a.m. start time at the American Legion Post 17 in Lewes. In memory of Scott Peterson. Benefits the Blood Bank of Delmarva. Info: races2run.comraces2run.com

April 28

The Journey 5K and 1-mile walk. 9 a.m. at the Sea Colony Tennis Center near Bethany. Documentary viewing on Friday at 7:30 p.m. Tennis and pickleball tournaments on Saturday, 12:30 p.m. and 3 p.m. start times. Benefits the Multiple Myeloma Research Foundation. Info: seashorestriders.com or seacolony.com/events

May 4

Seashore Classic, featuring a half marathon, a two-person half-marathon relay, and a 5K run. 8 a.m. at Irish Eyes Pub & Restaurant, Lewes. Info: seashorestriders.com

May 5

A Run Through History, a 5K run and walk to benefit Fort Miles in the Cape Henlopen State Park near Lewes. 9 a.m. at the Cape Henlopen State Park. Info: races2run.com

May 11

Race4Warriors, a 5K run as well as a half-marathon and a marathon. All at Cape Henlopen State Park near Lewes. The half-marathon loops around Gordons Pond, the marathon goes to Seashore State Park south of Dewey Beach and back. First races start at 7 a.m. Benefits wounded and homeless veterans. Info: race4warriors.org

Cape Gazette 5K. 9 a.m. start time at the Cape Gazette office, near Nassau. Festival to follow the race. Portion of proceeds go to the Harry K Foundation. Info: runsignup.com

May 18

Ronald McDonald Hustle for the House. 5K run and 1-mile walk options. 9 a.m., starting at Irish Eyes Pub & Restaurant, Lewes. Info: races2run.com

May 19

DQ Dash for Fireworks 5K. Includes a 1-mile fun walk. Benefits Go 4th Lewes, which raises money for July 4th fireworks shows. 9 a.m., starting at the Dairy Queen in Lewes and running on the Cape Henlopen Trail Extension. Info: seashorestriders.com

May 26

Masser 5 Miler. 7:30 a.m., starting at Cape Henlopen High School near Lewes. Info: seashorestriders.com

May 27

Highway One Companies 5K. 7:30 a.m. at the Rusty Rudder, Dewey Beach. Benefits the Dewey Beach Patrol, the Sussex Consortium, and area chapters of the Rotary Club. Info: races2run.com

Through June

Loopin’ for the Library. Ride a total of 20 miles in June to benefit the Lewes Public Library. Info: 302-645-2733 or lewes.lib.de.us