Bob Charles has won the British Open and a number of other titles. Lydia Ko, born in Seoul but raised from infancy in New Zealand, was #1 in the women's World Amateur Golf Ranking, and won two events on the US-based LPGA Tour before turning professional in 2013. She has since won seven more LPGA events, and for a time was #1 in the Women's World Golf Rankings for professionals. The first of Ko's two stints as #1 in the professional rankings began in February 2015, before her 18th birthday, making her the youngest player of either sex to reach the top of the world rankings. Later in 2015, Ko won her first major championship, the Evian Championship, becoming the youngest player of either sex to win a professional major championship, and became the youngest-ever LPGA Player of the Year. Tournaments and competitions include New Zealand Open, New Zealand Women's Open, New Zealand Amateur and New Zealand PGA Championship. Hockey In New Zealand, like most other Commonwealth nations, "hockey" without an identifier refers to field hockey, as opposed to ice hockey and other kinds of hockey. The New Zealand Hockey Federation (also known as Hockey New Zealand) administers the sport in New Zealand, and had 48,174 registered players in the 2013 winter, of which 52.8 percent were female and 47.2 percent were male. The New Zealand men's national team and women's national team are both known as the "Black Sticks". The best result attained thus far by the men was a gold medal at the 1976 Summer Olympics in Montreal. The best placing by the women thus far has been a 4th placing at both the 1986 Women's Hockey World Cup and the 2012 Summer Olympics. In the Commonwealth Games they have won a silver medal at the 2010 Commonwealth Games, bronze at the 2014 Commonwealth Games, and gold at the 2018 Commonwealth Games. , the men's team is ranked 8th and the women's team is ranked 4th in the world by the International Hockey Federation (FIH). Ice hockey Ice hockey has been played in New Zealand since 1937, but is a fairly small sport and has currently around 1600 active players. The national governing body is New Zealand Ice Hockey Federation which is made up of 3 Regional Associations. Since 2005 the NZIHF organizes the New Zealand Ice Hockey League that currently consists of five teams, two teams from