[4][5] Debreczeni played an integral role and was a standout in Trinity Grammar's record breaking undefeated 2011 1st XV team, earning him selection in the Australian Schoolboys.

[citation needed] Debreczeni is a tall, versatile fly-half standing at six-foot four he can play multiple roles including fullback.

He has silky hands and deceptive pace despite his 192-centimetre, 102-kilogram frame, as well as his long distance kick which had garnered attention from the likes of AFL club Essendon.

[11] After only playing fourteen games during 2016, Debreczeni scored a total of 120 points finishing equal tenth overall with fellow Australian Bernard Foley.

[18] Debreczini signed with the Brumbies for the 2023 Super Rugby Pacific season[19] as back up to Wallabies fly half Noah Lolesio.