NATIONAL 20A TEAMS winners
| 2014 | Michael Ware | John Davidson | Ashley Bach | Moss Wylie |
| 2015 | Michael Cornell | Ashley Bach | Peter Newell | Martin Reid |
| 2016 | Kathy Ker | Anthony Ker | John Patterson | Murat Genc |
| 2017 | Kathy Yule | Ken Yule | Ian Berrington | Fuxia Wen |
| 2018 | Kathy Yule | Ken Yule | Jonathan Westoby | Malcolm Mayer |
| 2019 | Kate Davies | John Patterson | Grant Jarvis | Gary Chen |
| 2020 | Alan Grant | Anne-Marie Russell | Jane Lennon | Ian Berrington |
| 2021 | Cancelled - Covid | |||
| 2022 | Malcolm Mayer | Grant Jarvis | GeO Tislevoll | Jeremy Fraser-Hoskin |
| 2023 | Jane Lennon | David Taylor | Annette Henry | Stephen Henry |
| 2024 | Malcolm Mayer | Zachary Yan | Lysandra Zheng | Nick Bailey |
| 2025 | Michael Ware | Matthew McManus | Hugh McGann | GeO Tislevoll |
| 2026 | Leon Meier | Jack James | Ashley Bach | Malcolm Mayer |
| 2027 | ||||
| 2028 | ||||
| 2029 | ||||
| 2030 | ||||
| 2031 | ||||
| 2032 |
