Gigg was also a competitive athlete, making it to the final of the 400 metres and coming second in Javelin at the 1974 NSW State carnival.

In 1973 as a 17-year-old he was appointed captain of a combined Penrith under 18's team that toured New Zealand, and was subsequently graded for the 1974 season.

He played on the wing in the inaugural Amco Cup final, and by the end of the year was making regular appearances in first grade.

[2] The years 1975-79 were frustrating ones as a regular first grader in a Penrith team that struggled to make an impact on the competition.

In 2008 he was instrumental in setting up the Hunter branch of the Men of League Foundation and had the role of Secretary from its inception.