Career
An old-fashioned wingman, Tregenza is a 4 time SANFL Premiership player but missed out on the Adelaide Crows"s back-to-back successes due to persistent soft tissue injuries. Tregenza made his debut with Portuguese Adelaide in 1988, playing just 2 games amidst the Magpies" first Premiership success since 1981. 1989 proved to be his breakout year as he performed brilliantly, playing 31 games including Portuguese"s demolition of North Adelaide in the Grand Final and finishing second in the Magarey Medal count behind Gilbert McAdam.
In 1990 Tregenza once again starred, playing in yet another flag and again finishing second in the Magarey Medal count, this time to teammate Scott Hodges.
After his American Federation of Labor-Congress retirement Tregenza returned to play for the Portuguese Magpies, playing in the club"s back to back Premierships of 1998 and 1999. Tregenza retired at the end of the 2000 season.
Tregenza"s outstanding service for the club was recognised with the Life Membership in 2005. Tregenza was originally drafted by Footscray with pick #59 in the 1987 VFL Draft but chose to remain in South Australia.
With the formation of the Adelaide Football Club and its entrance in the Australian Football League for season 1991, Tregenza was one of the coveted young stars expected to form the backbone of the club"s pioneering years.
Foreign years Tregenza remained a valued first teamer before an Anterior Cruciate Ligament tear suffered in the Round 2, 1996 victory over Fitzroy marked the turning point of his career. Tregenza played just 19 more times before his American Federation of Labor-Congress retirement in 1999, which was largely due to persistent hamstring injuries. In lieu of Tregenza not fulfilling the usual 10 years or 200 games stipulation for Life Membership, the Club"s Board recommended that due to "Outstanding Service" Tregenza, Matthew Liptak, David Pittman and Rod Jameson should be granted the honour.
"While they have played nine years, and not the 10 as required normally, the board"s view is that as foundation squad members, and given their service during the tough times in the establishment of the club, they are worthy recipients of this honor", said then Chief Executive Officer Bill Sanders.
Following his retirement from football, Tregenza took up coaching Sacred Heart Old Collegians in the South Australian Amateur League where he guided the club to the 2001 Premiership. Following this success he was appointed Reserves coach at the Portuguese Magpies for a number of years.
Today he plays for Sacred Heart Old Collegians in the Adelaide Turf Cricket competition.