The locations, adjudicators and winners of The Delius Prize have been as follows:
| Year | Location | Adjudicator | First Prize / Second Prize |
| 2004 | RAM | David Lloyd-Jones | David Worswick and Neil Georgeson |
| 2005 | RAM | Lionel Friend | Cappa Quartet / Shula Olivera (runner-up) |
| 2006 | RAM | Sir Charles Mackerras | Liv-Marie Fletcher and Timothy End / Edgar Bailey and Timothy End |
| 2007 | RAM | Piers Lane | Jessica Hayes and Christopher White* |
| 2008 | RAM | Bo Holten | Rita Mascagna and Michele Gamba / Mihai Cocea and Florian Mitrea |
| 2009 | BC | Julian Lloyd Webber | Rebeca Omordia / Anna Ovsyanikova |
| 2010 | BC | Paul Spicer | Claire Lees / Philip Handy |
| 2011 | BC | Mark Stone | Dominika Fehér / Natalie Hyde |
| 2012 | Chetham’s School, Manchester | Lionel Friend | Jon Stainsby and Se Ho Lee* |
| 2013 | BC | Stephen Threlfall | Amy Littlewood and Hetti Price* |
| 2014 | No Prize held | ||
| 2015 | RAM | Jeremy Dibble | Thomas Ang / Amy Goodwin and Daniel Espie |
| 2106 | RAM | Bo Holten | Joseph Havlat / Euterpe Quartet |
| 2017 | RAM | Stephen Barlow | James Heron and Thomas Ang / Courtenay Cleary and Thomas Ang |
| 2018 | RAM | David Hill | Ye Jin Choi and Kevin Suherman / Hannah Curtis and Gus Tredwell |
| 2019 | RBC | Paul Guinery | Tom Pickles and Olivia Chew / Jeffrey Armstrong and Orestis Magou |
| 2020 | No Prize held due to COVID-19 | ||
| 2021 | No Prize held due to COVID-19 | ||
| 2022 | RBC | Sir Mark Elder | Yujie Wang / Antonida Kocharova and Ishan Bhadra |
| 2023 | No Prize held | ||
| 2024 | RAM | Stephen Threlfall | Rachael Kwa and Andrew Zhao / Muriel Oberhofer and Julian Chan |
| 2025 | RAM | Mark Bebbington | Anson Wong / Daisy Livesey and Benjamin Markovic jointly with Joseph Reynolds and Seth Schultheis |
| 2026 | RBC | Stephen Barlow | Joachim Lim and Keelan Carew* |
RAM = Royal Academy of Music, London
BC = Birmingham Conservatoire
RBC = Royal Birmingham Conservatoire
* = no second prize awarded
Notes
- A runner-up was identified in 2005 but a Second Prize was first awarded in 2006
- The finalists at the RAM to 2008 were judged as duos; at the BC they were judged as soloists
- The members of the Cappa Quartet (winners in 2005) were Anthony Sabberton and Giovanni Guzzo (violins), Adam Newman (viola) and Brian O’Kane (‘cello)
- The members of the Euterpe Quartet (runners up in 2016) were Sally and Sasha Gorski (violins), Kim Becker (viola) and Olivia da Costa (cello).