Jack Nicklaus wins the 30th Masters Tournament

In an 18-hole playoff, Jack Nicklaus earned his third Green Jacket and became the Masters first back-to-back champion.

Nicklaus ended regulation at 288 tied with Tommy Jacobs and Gay Brewer. Nicklaus shot 70 in the extra round to defeat Jacobs by two strokes and Brewer by eight. That year any player within 10 strokes of the lead qualified for the final two rounds.

Who was the first back-to-back winner of The Masters? It was Jack Nicklaus, and he completed the feat at the 1966 Masters.

Nicklaus, the 1965 champion, plus Gay Brewer and Tommy Jacobs all finished 72 holes tied at even-par 288. So the trio headed into an 18-hole Monday playoff, which Nicklaus won by shooting 70. Jacobs had a 72 in the playoff and Brewer a 78.
Brewer had a chance to win in regulation, but bogied the 72nd hole. He did return to win the 1967 Masters, however.

His victory at the 1966 Masters was Nicklaus' third win at The Masters, and his fifth major championship victory.

The 1966 Masters was the final playing appearance in the tournament by Byron Nelson, who missed the cut.