The Harry Yule Smith Plate is awarded to the Leading Helm & Crew under 15 years of age other than the overall winners, or the U19 Trophy Winners at the National Championships.
Here are some photographs of past winners
| Year | Held by | Note |
| 2024 | Felix & Rupert Garlick | |
| 2023 | Willow Cross & Katie Bees | |
| 2022 | Max Phypers & Emma Sellwood | |
| 2021 | Not returned, should have been awarded to Milly Tregaskes & Taryn Banks | |
| 2019 | Oliver Rayner & Imogen Wade | |
| 2018 | Edward Coady & Abi Cowley | |
| 2017 | Archie Hawkins & Jack Stevens | |
| 2016 | Tom Ewart-Smith & Ellie Sproul | |
| 2015 | Eleanor Keers & Izzy Pugh | |
| 2014 | Henry & Jamie Rastrick | |
| 2013 | ||
| 2012 | ||
| 2011 | ||
| 2002 | Dan & James Ellis | |
| 2001 | Niki & Christian Birrell | |
| 1988 | Jeremy Reed |
