David Haller

Coaching Haller began his coaching career as a physical education master at Western Secondary Modern School, now Western Secondary School. After his future British National team coach, Deryk Snelling left the Southampton School to coach the Vancouver Dolphins in Canada, Haller was hired fulltime by Southampton in November, 1967, though he had been coaching there earlier on a part-time basis. Haller continued as Head Coach at Southampton through around 1974. The Southampton School had a well-recognized athletic program and swim club in Southampton, Hampshire, a coastal city in Southeast, England. Haller noted, "it will be a great challenge to maintain the success which Deryk achieved during his five years as coach".

City of Cardiff coach Beginning in 1974, Haller served as the Head Coach for the City of Cardiff Swimming Club in Cardiff, Wales. After achieving notable success at the City of Cardiff, Haller was National Team Coach for Britain at ten Olympic Games and for England, Wales or Hong Kong at twelve Commonwealth Games. Among those whom he coached during this period as National team coach were the Olympic Gold Medallists David Wilkie, Duncan Goodhew and David Davies. In an interview Davies attributed much of his success to his Coach David Haller. He said, "If it weren't for David, I wouldn't be getting up at 5:00 AM. Its easier...when you know you're working with someone who is so dedicated."

Both Haller and former national British swim teammate Keith Buley were part of the three-person British Coaching Staff for the British Olympic team in 1980.

Return as Cardiff Head Coach After coaching on the international level for Great Britain, Haller returned to Coach swimming at Cardiff in 1994. He was a part of the success of Cardiff's Olympic medalist David Davies who he helped lead to an Olympic bronze medal at the 2004 Athens Olympics in the 1500m Freestyle. Later Davies won a silver medal at the Beijing Olympics in the 10K Open Water Marathon. At the 2006 Melbourne Commonwealth Games, Davies captured a gold medal in the 1500m and a bronze in the 400 metre event.