The Park District of Oak Park’s annual Frank Lloyd Wright Races will bring street closures along the route from about 7:30 to 10:30 a.m., Sun., Oct. 18, including from Lake Street north to Division Street. Traffic on other streets within the race route also may experience delays. Residents are encouraged to review the course map at www.flwraces.com and allow for extra travel time. The event, now in its 39th year, will feature a 5K run/walk, 10K run, and youth mile for ages 7 to 14. Anyone interested in helping with this community event is invited to volunteer at www.flwraces.com/volunteering.