 On April 22, 2006, at age 95, Noble Threewitt became the oldest trainer to win a race in North America when Threeatonce, owned by grandson Chris Chinnici, won a maiden claiming race at Santa Anita Park.On his February 24, 2007 birthday, Threewitt officially retired as a trainer having won more than 2,000 races.A long-time friend of trainer Charlie Whittingham, in 1993 Hollywood Park Racetrack named its new Horsemen's Lounge in their honor.