| Seasons | Premiers | Teams | Players | Coaches | Honours/Records |
Format: Under-21
First season: 1961
Number of teams: 14
Current Premiers: Penrith Panthers (6th title)
Most Premierships: Canterbury Bulldogs (11 titles)
| Season | Grand Final | Minor Premiers | ||
| 2018 | Cronulla Sharks 22–12 Penrith Panthers | Newcastle Knights | ||
| 2019 | South Sydney Rabbitohs 16–14 Canberra Raiders | Cronulla Sharks | ||
| 2020 | None | None | ||
| 2021 | None | None | ||
| 2022 | Penrith Panthers 19–18 Newcastle Knights | Sydney Roosters | ||
| 2023 | Canterbury Bulldogs 22–20 Sydney Roosters | Sydney Roosters | ||
| 2024 | Canterbury Bulldogs 14–12 Cronulla Sharks | Canberra Raiders | ||
| 2025 | Melbourne Storm 38–16 Penrith Panthers | Melbourne Storm | ||
| 2026 | Penrith Panthers 62–16 Canterbury Bulldogs | St George Illawarra Dragons |