One to One Fitness Center will host its annual Zumbathon for Relay for Life on Saturday, Feb. 22, from 10 a.m. to 12 p.m. at Adelbert Gym. The event will feature Rodney Jordan, CWRU police corporal, as DJ. Free smoothie samples will be available from the Recovery Zone Juice Bar. One to One fitness instructors will lead the event. All exercise levels are welcome.