Jason “Jock” Hillgrove has been involved in umpiring for over 30 years. He is a life member of Geelong Umpires, umpiring nearly 250 games, and has made a greater impact in the coaching and development of umpires in Victoria, NSW and ACT.

Before his time at AFL Barwon, Jock was with AFL NSW/ACT–Canberra for 5 years as Umpire Development Manager serving the areas of the ACT, South and Far South Coast of NSW and gaining experience at all levels of the game.

Bringing experience, passion and enthusiasm to the Barwon region, Jock has been AFL Barwon's Director of Umpiring for over 9 years.

Jock completed his AFL Umpire High Performance and Coaching Certificate in 2016 and has also served as a Geelong Umpires Board of Director, Umpire Coach, and Umpire.