Crystal City Twilighter 5K starts at 8:30 p.m. July 23. The starting line is between 20th and 23rd streets on Crystal Drive in Arlington. Registration is $40, $45 on race day.
Glow for Hope 5K/10K is at 8:30 p.m. July 30 at Virginia Gateway Atlas Walk, off Lee Highway in Gainesville. Registration for the 5K is $35, $40 after June 30. Registration for the 10K is $40, $45 after June 30.
RunStock 5K kicks off at 7 p.m. Aug. 20 at Butler Stadium in Quantico. Registration is $35, plus a processing fee.