The annual Flintridge Autumn Classic, now in its 100th year, is hosted by the Flintridge La Canada Guild, a non-profit organization whose mission is to support the Huntington Memorial Hospital. The Flintridge Autumn Classic is also a long-running competition, held continuously for the past 60 years.

All events are held at the historic Flintridge Riding Club, which was established in 1923. The Flintridge Riding Club is a 40-acre facility that includes three jumping arenas, two dressage rings, a cross-country field, boarding for up to 180 horses, and easy access to miles of riding trails. Abundant trees and grass-covered hills make it a particularly beautiful location.