Jack William Nicklaus, nicknamed "The Golden Bear", is a retired American professional golfer.
He is widely regarded as the greatest professional golfer of all time, winning a total of 18 career major championships, while producing 19 second place and 9 third place finishes in them, over a span of 25 years.
Nicklaus focused on the major championships, and played a selective schedule of regular PGA Tour events, yet still finished with 73 victories, third on the all-time list.
After winning two U.S.
Amateurs in 1959 and 1961, and challenging for the 1960 U.S.
Open, Nicklaus turned professional toward the end of 1961.
The 1962 U.S.
Open was both Nicklaus' first major championship victory and his first professional win.
This win over Arnold Palmer began the on-course rivalry between the two.
In 1966, Nicklaus won the Masters Tournament for the second year in a row, becoming the first golfer to achieve this, and also won The Open Championship, completing his career slam of major championships.
At age 26, he became the youngest to do so at the time.
In 1968 and 1969, Nicklaus did not win a major tournament.
He then won another Open Championship in 1970.