Background:Competitive balance is an important factor which involves teams that have an equal number of strengths and weaknesses in the league to keep the predictability of the outcome uncertain and cause the league to be exciting. The study aimed at examining the trends of competitive balance for women's Domestic One Day Cricket leagues over a period of five years starting from 2015 to 2019.Methods: To evaluate the competitive balance of these domestic leagues the five-club concentration ratio (C5) and C5 index of competitive balance (C5ICB) were used. C5ICB is a more rational index to assess the competitive balance of a particular league.Conclusion:Using the C5ICB index, the results exhibited the highest and lowest competitive balance between countries which were New Zealand (107.52), Australia (124.86), England (142.22) and India (167.23).