Junior Men's 400mH / 440yH
| Year | Note | First | Second | Third |
|---|---|---|---|---|
| 1968-69 | U19 400mH | Peter COX (AYC) 55.6 | Yanah SIEJKA (NS) | |
| 1969-70 | U19 400mH | Peter COX (AYC) 58.6 | Greg GOLDSMITH (NS) | |
| 1970-71 | U19 400mH | Chris O'TOOLE (NEW) 61.2 | Greg GOLDSMITH (OVA) | T JACKSON (SB) |
| 1975-76 | U19 400mH | Geordie CLARK (NL) 58.8 | Bruce BENNETT (NEW) | Paul LITTLEJOHN (SB) |
| 1976-77 | U19 400mH | Geordie CLARK (NL) | L HOODLESS (OVA) | Paul LITTLEJOHN (SB) |
| 1977-78 | U19 400mH | Geordie CLARK (NL) 55.8 | Brooke ALEXANDER (NL) 58.2 | Murat DJAKIC (NL) 59.5 |
| 1978-79 | U19 400mH | Gary HENNESSY (NL) 56.6 | David PREECE (TAM) 56.9 | Murat DJAKIC (NL) 60.7 |
| 1979-80 | U20 400mH | David PREECE (TAM) 56.2 | Murat DJAKIC (NL) 57.0 | Robert HABEL (NEW) 58.2 |
| 1980-81 | U20 400mH | Robert HABEL (NEW) 57.1 | David TARBOTTON (NSW) 58.7 | |
| 1981-82 | U20 400mH | Robert HABEL (NEW) 55.4 | S WOOD (NSW) (2)Graham TUDOR (TAM) |
|
| 1982-83 | U20 400mH | Graham TUDOR (TAM) 57.0 | Cole LARSEN (RIV) | Felix RATCLIFF (RIV) |
| 1983-84 | U20 400mH | Felix RATCLIFF (RIV) 54.2 | Robert FACCHIN (NL) | Shane HOLUBNYTSCHYJ (NS) |
| 1984-85 | U20 400mH | Robert FACCHIN (NL) 55.3 | T LOVE (RIV) 55.8 | Tony DONALD (NL) 60.7 |
| 1985-86 | U20 400mH | Leif LARSEN (RIV) 58.7 | ||
| 1986-87 | U20 400mH | Shane HOLUBNYTSCHYJ (NS) 58.7 | Jarrod GIBSON (NS) | |
| 1987-88 | U20 400mH | Jarrod GIBSON (NS) 66.0 | ||
| 1988-89 | U20 400mH | Paul AIKEN (SB) 55.3 | Jarrod GIBSON (NS) 66.6 | |
| 1989-90 | U20 400mH | Clement HIRST (OVA) 58.00 | Matthew SHAW (SB) | Luke FOLEY (NS) |
| 1990-91 | U20 400mH | NOT CONTESTED | ||
| 1991-92 | U20 400mH | NOT CONTESTED | ||
| 1992-93 | U20 400mH | Donald BROOM 58.30 | Chris HILL 61.48 | |
| 1993-94 | U20 400mH | NOT CONTESTED | ||
| 1994-95 | U20 400mH | NOT CONTESTED | ||
| 1995-96 | U20 400mH | Jeremy RAE (SB) 58.76 | ||
| 1996-97 | U20 400mH | NOT CONTESTED | ||
| 1997-98 | U20 400mH | NOT CONTESTED | ||
| 1998-99 | U20 400mH | Thomas HAY (NEW) 60.72 | ||
| 1999-00 | U20 400mH | Torin PHILPOTT (RIV) 59.26 | ||
| 2001-02 | U20 400mH | Christopher SULLIVAN (SB) 75.38 | Michael SULLIVAN (SB) 83.92 | |
| 2002-03 | U20 400mH | NOT CONTESTED | ||
| 2003-04 | U20 400mH | Alastair BLAINE (ES) 57.48 | Daniel MACE (NL) 60.29 | Baden WASS (ES) 63.87 |
| 2004-05 | U20 400mH | Ben RICKARDS (OVA) 55.73 | ||
| 2005-06 | U20 400mH | NOT CONTESTED | ||
| 2006-07 | U20 400mH | Jasper DA SEYMOUR (NEW) 59.44 | ||
| 2007-08 | U20 400mH | NOT CONTESTED | ||
| 2008-09 | U20 400mH | Chris MCCONNELL (ES) 60.90 | ||
| 2009-10 | U20 400mH | Tyler HERON (WS) 58.74 | Josh ZEITZEN (NS) 65.92 | |
| 2010-11 | U20 400mH | Tyler HERON (WS) NTA | Josh ZEITZEN (NS) NTA | |
| 2011-12 | U20 400mH | Josh ZEITZEN (NS) 64.48 | ||
| 2012-13 | U20 400mH | Jake DODGE (OVA) 63.99 | ||
| 2013-14 | U20 400mH | Samuel PULFORD (NW) 63.93 | ||
| 2014-15 | U20 400mH | Samuel PULFORD (NW) 63.50 | ||
| 2018-19 | U20 400mH | Bayley CAMPBELL (OVA) 66.92 | ||
| 2020-21 | U20 400mH | Jaydn CRAWFORD (NL) 60.08 | ||
| 2021-22 | U20 400mH | Jaydn CRAWFORD (NL) 58.90 | ||
| 2022-23 | U20 400mH | NOT CONTESTED | ||
| 2023-24 | U20 400mH | Thomas WATTERS (NL) 63.50 | ||
| Year | Note | First | Second | Third |
