Teams Ruairi Willis played for
| Home Counties Premier League | Oxford (2018) |
| Cricketer Cup | St Edward's Martyrs (2014-2025) |
| Miscellaneous | Oxfordshire Under-13s (2008) |
| Ireland Under-15s (2010) | |
| St Edward's School, Oxford (2011-2013) | |
| Ireland Under-17s (2012) | |
| St Edward's Martyrs (2013-2024) | |
| Aberystwyth University (2015) | |
| Marylebone Cricket Club (2018-2025) | |
| Cryptics (2018-2022) |