1924 and is awarded for the lowest round in the championship. The Bledisloe Cup was presented by Lord Bledisloe, the fourth Governor-General, in 1934 and is awarded to the leading amateur. The 1937 event was thought to be won by Alex Murray. However, shortly after the tournament ended it was discovered that Murray hit a putt while his playing partner was also putting. Though unintentional, this was a rule violation. Murray was therefore disqualified. John Hornabrook, the reigning New Zealand Amateur champion, Andrew Shaw, the defending New Zealand Open champion, and Ernie Moss played off for title the following day. Hornabrook won the 18-hole playoff. In 1954 Bob Charles, who was later to become the only New Zealander to win a major championship in the 20th century, won as an 18-year-old amateur. He won again in 1966, 1971 and 1973, as a professional, and he and the two Australian major champions Peter Thomson and Kel Nagle dominated the event from the early 1950s to the mid-1970s. Thomson won the event nine times while Nagle won it seven times. In 1966 Australian professionals were banned from playing in the tournament by the Australian PGA. The intention of the Australian PGA was to protect the North Coast Open tournament at Coffs Harbour, Australia and ensure that all of the best Australian players entered that event. Despite the ban, Kel Nagle and Len Thomas played in the event. Other well known winners have included the American Corey Pavin in 1984 and 1985, and Michael Campbell in 2000. Campbell joined Charles as a major champion when he won the 2005 U.S. Open. In 2002 Tiger Woods took part as a thank you to his New Zealand caddie Steve Williams, but he did not win. His participation caused some controversy when ticket prices were raised sharply that year. The New Zealand Open is a PGA Tour of Australasia tournament, and in 2005 was co-sanctioned for the first time by the European Tour, which led to a doubling of the prize fund to 1.5 million New Zealand Dollars. The European Tour had co-sanctioned PGA Tour of Australasia events before, but they had all been in Australia, making this the tour's first ever visit to New Zealand. In 2006 the event was moved to November, taking its place on the European Tour schedule for the following calendar year. The 2007 event was the last to be co-sanctioned