University students, staff and faculty and community members simultaneously roll tires around Francis Field. More than 140 people helped raise cancer awareness for the Siteman Cancer Center — along with breaking the Guinness world record for group tire rolling — at the Sept. 20 event. Participants at the Roll Over Cancer event decorated tires, donated by Dobbs Tire & Auto, with multicolored ribbons designated for specific types of cancer to increase awareness about cancer prevention, detection, diagnosis and treatment.