| Year | Premiers |
| 2008 | Canberra Raiders |
| 2009 | Melbourne Storm |
| 2010 | Warriors |
| 2011 | Warriors |
| 2012 | Wests Tigers |
| 2013 | Penrith Panthers |
| 2014 | Warriors |
| 2015 | Penrith Panthers |
| 2016 | Sydney Roosters |
| 2017 | Manly Sea Eagles |
Format
Under-20 (2008–2017)
Most Premierships
3 Warriors (2010, 2011, 2014)
2 Penrith Panthers (2013, 2015)
1 Manly Sea Eagles (2017)
1 Sydney Roosters (2016)
1 Wests Tigers (2012)
1 Melbourne Storm (2009)
1 Canberra Raiders (2008)
Most Consecutive
2 Warriors (2010 to 2011)