Objective: This study aims to identify the contribution of each Brazilian state to the competitiveness of the country´s rice exports, through the indices of Revealed Comparative Advantage (RCA) and Relative Position (IPR), in addition to the construction of a performance matrix, according to the linear trend of the historical series of these indicators, following the model proposed by Farias and Farias (2018). Theoretical framework: The importance of international trade is related to its ability to expand consumer markets for the population of a country, to the mitigation of internal risks through the diversification of internal markets, and to the possibility of obtaining new raw materials, technologies and new alternatives for production. Considering its relevance, commercial relations have been the object of study of economic sciences since its inception. Methodology: Initially, the theoretical and methodological aspects necessary to obtain the Revealed Comparative Advantage (RCA) and the Relative Position (RPI) indices are detailed. Subsequently, the steps required for the construction of the performance matrix by Farias et al. (2018) for the rice sector are presented, as well as a description of the data used. Results and conclusion: The empirical data cover the period from 1999 to 2021 and were collected in the Comex Stat database. It is noteworthy that only the first two are efficient and with a growing trend, indicating that these states have strong potential to expand their participation in the sector. The state of Acre was classified as with stable external potential, while Amazonas and Mato Grosso were classified as with stable internal potential. The other units of the federation were classified as inefficient. Research implications: From the elaboration and analysis of this matrix, the present study contributes to deepen the discussions on the competitiveness of the Brazilian rice sector, and to elucidate the representativeness of each state for the international trade of this important commodity Originality/value: Brazil has favorable geographic characteristics and climatic conditions to expand rice cultivation, and the sector has shown constant increases in productivity. For these reasons and considering that rice is one of the most important cereals in the world, the country could make better use of its productive potential to increase the international competitiveness of its rice sector.