| WC Qualifiers Oceania Women | 04/05 07:00 | 3 | Ella Lash v Grinham, Rachael | 3-0 | |
| Australian Open Women | 03/20 09:00 | 7 | Haya Ali v Grinham, Rachael | 3-0 | |
| British Open Women | 03/28 11:00 | 7 | Heijden, Milou van Der v Grinham, Rachael | 3-1 | |
| CIB Black Ball Open Women | 03/10 11:45 | 8 | Grinham, Rachael v Gilis, Nele | 0-3 | |
| CIB Black Ball Open Women | 03/08 17:15 | 7 | Grinham, Rachael v Aboulmakarim, Nour | 3-2 | |
| Windy City Open Women | 02/27 18:00 | 7 | Grinham, Rachael v Turmel, Lucy | 2-3 | |
| J.P. Morgan Tournament of Champions 2020, Women | 01/10 19:30 | 7 | Grinham, Rachael v Fuller, Alexandra | 0-3 | |
| PSA World Championships Women | 10/25 14:00 | 8 | Perry, Sarah-Jane v Grinham, Rachael | 3-0 | |
| PSA World Championships Women | 10/24 11:30 | 7 | Grinham, Rachael v Cardwell, Sarah | 3-0 | |
| US Open Women | 10/06 17:45 | 8 | Au, Annie v Grinham, Rachael | 3-1 | |
| US Open Women | 10/05 17:45 | 7 | Mendez, Haley v Grinham, Rachael | 2-3 | |
| Oracle NetSuite Open, Women 2019 | 09/25 23:00 | 7 | Naughton, Hollie v Grinham, Rachael | 2-0 |