Head to Head
| Scottish Open 2019 | 2019/12/11 19:00 | Ronnie O'Sullivan v James Cahill | 4-0 |
| World Championship 2019 | 2019/04/22 13:30 | Ronnie O'Sullivan v James Cahill | 8-10 |
| China Championship Qualifiers 2019 | 2017/01/26 19:00 | Ronnie O'Sullivan v James Cahill | 5-3 |
| China Championship Qualifiers 2019 | 2016/09/29 18:30 | Ronnie O'Sullivan v James Cahill | 6-4 |