| Winner | Runner-up | |
| Royal London One-Day Cup | ||
| 2014 | Durham | Warwickshire |
| 2015 | Gloucestershire | Surrey |
| 2016 | Warwickshire | Surrey |
| 2017 | Nottinghamshire | Surrey |
| 2018 | Hampshire | Kent |
| 2019 | Somerset | Hampshire |
| 2020 | No competition – Covid-19 pandemic | |
| 2021 | Glamorgan | Durham |
| 2022 | Kent | Lancashire |
| Metro Bank One-Day Cup | ||
| 2023 | Leicestershire | Hampshire |
| 2024 | Glamorgan | Somerset |
| 2025 | Worcestershire | Hampshire |
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