David O'Connor (equestrian) David O'Connor (equestrian) David John O'Connor (born January 18, 1962) is a retired equestrian who represented the United States in the sport of three-day eventing. He competed in two Olympic Games, winning a team silver at the 1996 Summer Olympics and an individual gold and team bronze at the 2000 Summer Olympics. At the 1999 Pan American Games, O'Connor took an individual silver and team gold and at the 2002 World Equestrian Games he assisted the US team to gold. After his retirement from competition in 2004, he became involved in the administrative side of international eventing. O'Connor has held
Equestrian helmet sport. For equestrian helmets, these other tests may include dropping the helmet onto an anvil with a sharp edge, to simulate impact with the edge of a jump standard or a horse hoof. The most common standard used by sanctioning organizations in the United States is known as ASTM F1163 It is periodically updated, the most recent is ASTM F1163-13 (2013). It is a performance standard written by a volunteer committee of "producers" (persons who represent manufacturing companies) and "users" of equestrian helmets, and published by ASTM International. The standard defines performance criteria and test methods; it does not prescribe