Sarah Ingersoll, clinical assistant professor of neurology at the Keck School, competed in the 2014 Nautica Malibu Triathlon on Sept. 14. Ingersoll, a 72-year-old Pasadena resident, finished first in her age group, but noted that she was also the only one in it. The triathlon benefited Children’s Hospital Los Angeles and raised more than $1.35 million.