Head to Head
| German Masters 2018 | 2017/12/19 10:00 | Xu Si v David Grace | 4-5 |
| International Championship Quals | 2017/09/27 08:30 | David Grace v Xu Si | 6-2 |
| German Masters 2018 | 2017/12/19 10:00 | Xu Si v David Grace | 4-5 |
| International Championship Quals | 2017/09/27 08:30 | David Grace v Xu Si | 6-2 |