Endacott began as a junior at the Shirley Hawks, and later played for Addington and Hornby in the Canterbury Rugby League competition.
He made the Junior Kiwis in 1963, but after marrying and having a family of four sons decided not to take his rugby league playing career any further.
[5] He won the Minor Premiership in 2000 and made the Grand Final but was sacked after a string of bad results in the 2001 season.
[6] In August 2004 Endacott put his player management business on hold to act as an advisor to the Widnes Vikings.
Endacott was appointed as head coach of the New Zealand national rugby league team in 1994 and continued in this role until the end of the 2000 season.