At 7:30 a.m. Saturday, Patricia Guy of Ridley Park will be in front of the Philadelphia Museum of Art, ready and eager to participate in an annual event that's deeply meaningful to her.The Sandy Sprint is a 5k or 10k run/walk to raise funds for ovarian cancer research. It's the deadliest of all gynecological cancers, with a 5-year survival rate of only 50 percent.