The tournament was named after former England captain Rachael Heyhoe Flint, Baroness Heyhoe-Flint, who died in 2017.
[1] Southern Vipers finished top of the group stage, and as a result, they qualified automatically for the final.
In the final at the County Ground, Northampton, Southern Vipers won their second Rachael Heyhoe Flint Trophy in two years, beating Northern Diamonds by 3 wickets with 2 balls to spare.
In case of a tie in the standings, the following tiebreakers would be applied in order: highest net run rate, team that scored the most points in matches involving the tied parties, better bowling strike rate, drawing of lots.
[7] Southern Vipers finished top of the group stage, and as a result, they qualified automatically for the final.