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.

Nicklaus has also taken part in various off-course activities, including golf course design, charity work and book writing.

Nicklaus also runs his own tournament on the PGA Tour, the Memorial Tournament.

Nicklaus won the Tri-State High School Championship ( Ohio / Kentucky / Indiana ) at the age of 14 with a round of 68, and also recorded his first hole-in-one in tournament play the same year.

Nicklaus also competed in his first of 44 consecutive U. S. Opens that year, but missed the cut.

Nicklaus also won two Trans-Mississippi Amateurs – in 1958 at Prairie Dunes Country Club and 1959 at Woodhill Country Club, with final match victories of 9 & 8 and 3 & 2, respectively.

This was significant not only because of Coe's proven ability as a player, but also because Nicklaus became the then-youngest champion in the modern era, second only to Robert A. Gardner, who won in 1909.

Nicklaus also won the NCAA Big Ten Conference Championship that year with a 72-hole aggregate of 283, while earlier claiming the Western Amateur in New Orleans.

In 1960, Nicklaus also tied for 13th in the Masters Tournament.

Nicklaus also finished as low individual scorer for that event.

Nicklaus and Palmer also defended their team title at the World Cup in Hawaii, with Nicklaus again finishing as low individual scorer.

In 1966, Nicklaus also won The Open Championship at Muirfield in Scotland under difficult weather conditions, using his driver just 17 times, because of very heavy rough.

During this period, Nicklaus also let his physical condition decline somewhat, putting on excess weight, which affected his stamina.

Nicklaus also went on to capture the Piccadilly World Match Play Championship in 1970 with a 2 & 1 win over Lee Trevino in the championship match.

Nicklaus also claimed his third World Cup individual title in 1971, with help from a 63 in the third round.

This victory was also Nicklaus ' 11th professional major, tying him with Walter Hagen, and made him the first player to win the U. S. Amateur and U. S. Open championships on the same golf course.

Nicklaus was also the first player to win over $ 300, 000. 00 in official money for a single season in 1972 at $ 320, 542 ; he eclipsed that threshold again the following year with $ 308, 362.

Nicklaus also captured his fourth Australian Open during the year.

The year 1976 also concluded an official streak of 105 consecutive cuts made on the PGA Tour ( ending at the World Open ), which began for Nicklaus in 1970.

The following year, 1977, was also majorless for Nicklaus, but he did achieve four top-10 finishes in the four events inclusive of two second and one third place finish – this being one shot out of the PGA Championship playoff between Lanny Wadkins and Gene Littler.

The year also saw Nicklaus win for the first time his own Memorial Tournament, where he described the victory as the most emotional moment of his entire career, and nearly decided to retire from competitive golf.

The year 1978 also marked Nicklaus ' sixth and final Australian Open victory.

His victory also made Nicklaus the only player since Gene Sarazen in 1922 and Ben Hogan in 1948 to win the U. S. Open and PGA Championship the same year ( subsequently equaled by Tiger Woods in 2000 ).

Nicklaus left IMG in the early 1970s, to set up his own management agency, Golden Bear Inc.

At The Open Championship at St Andrews, Nicklaus set a new record for the lowest score in the final 36 holes with 66 – 68 in high winds ( the first time in the championship's history that 70 had been broken in each of the last two rounds ).

The 1976 Tournament Players Championship saw Nicklaus set a championship record of 19-under par 269 for his second win in this event which remained in place until Greg Norman's 24-under-par 264 assault in 1994.

Nicklaus set a new scoring record for the 1980 U. S. Open with an aggregate of 272, eclipsing his earlier record of 275 from 1967 over the same golf course.

In the 1980 PGA Championship, Nicklaus set another record in winning the championship by seven shots over Andy Bean at the Oak Hill Country Club, largely due to exceptional putting.

It has an exceptionally distinguished set of Open Champions including Jack Nicklaus, Tom Watson, Tom Kite, and Tiger Woods.

In the 2009 Bob Hope Classic, Stricker shot third and fourth round scores of 61 and 62, at the PGA West Palmer and Nicklaus courses, to set the 36-hole scoring record on the PGA Tour at 123, beating a record that Pat Perez had held for only two days.

Willie Anderson, Bobby Jones, Ben Hogan and Jack Nicklaus hold the record for the most U. S. Open victories, with four victories each.

* Masters Tournament-Jack Nicklaus shoots a Masters record 271 ( 17 under par ) to win by nine strokes.

At 15, Nicklaus shot a 66 at Scioto Country Club, which was the amateur course record, and qualified for his first U. S. Amateur.

He broke Ben Hogan's 72-hole scoring record of 274 from 1953 by compiling a new aggregate of 271 in the 1965 Masters Tournament, which while tied by Raymond Floyd in 1976, lasted until Tiger Woods shot 270 in 1997 ; Woods's score of 270 was achieved with significantly improved golf equipment on essentially the same-length golf course over which Nicklaus and Floyd scored 271.

" After Nicklaus ' record in 1965, some minor changes were made to Augusta National to toughen the course.

Nicklaus finished this record win with a dramatic 238-yard 1-iron shot, uphill into a breeze and light rain, to the 72nd green ( an approximate 260-yard equivalent ) and holing a birdie putt to close out a final nine of 30 and final round of 65 to beat Arnold Palmer by four shots.

With $ 244, 490 in official PGA Tour earnings, Nicklaus established a new single season money record during the year.

The year 1971 brought Nicklaus a victory in the Australian Dunlop International as well, punctuated by a course record 62 ( his career low score in competition ; one of three ) in the second round.

For the record, Nicklaus played in 23 official worldwide events in 1971, won eight, had 17 top-five finishes, 20 top-10 finishes, and compiled a 5 – 1 – 0 record in that year's Ryder Cup competition.

Jones ' record of majors was soon broken when Nicklaus won the PGA Championship in August 1973 by four shots over Bruce Crampton for his 12th professional major ( surpassing Hagen's mark of 11 ) and 14th overall when using the old-style configuration of Jones ' day.

For the year, Nicklaus competed in 20 official worldwide events and claimed seven victories, 14 top-five finishes, 17 top-10s, and compiled a 4 – 1 – 1 record in that year's Ryder Cup competition.

Previously, Nicklaus won at least one PGA Tour tournament per year ( a record he shares with Arnold Palmer ), and a minimum of two tournaments per year for 17 consecutive years, and this is another PGA Tour record.

Nicklaus also finished second in the 1985 Canadian Open to Curtis Strange, which marked his seventh and final second place finish in that tournament ; this is a record for that event.

At age 46, Nicklaus became the oldest Masters winner in history, a record which still stands.

Later in the year, Nicklaus won the Senior Players Championship by six shots over Lee Trevino for his second win of the year, and also his second major of the year by shooting a record 27-under par 261.

Nicklaus scored a six-under par 66, which stood as the course record until 1979.

During his career on the PGA Tour, Nicklaus holds the record for major championships with a total 18.