3-year-old race horse dies at Golden Gate Fields; second fatality this year By Keith Burbank article BERKELEY, CA - SEPTEMBER 2: A general view of the start of the 3rd Race during Summer Races at Golden Gate Fields on Sunday September 2, 2018 in Berkeley, California. (Photo by Cody Glenn/Getty Images) ALBANY, Calif. - A filly died Thursday at Golden Gate Fields in Berkeley, the second this year, according to the California Horse Racing Board. Munny, nearly 3 years old, likely died from a gastrointestinal or neurological disease, according to a board report and website that discloses the deaths to the public. Two weeks earlier, a three-year-old gelding named Staredown died at Golden Gate Fields during training.