2023 UIL Texas Baseball State Championships 4A Region 1 and 3

Matchups are either a best-of-three series or one single-elimination game from the bi-district round through the regional final. The bracket either displays best-of-three series tallies or single-game results, depending on the decided format. The district champion decides the format in the bi-district round. The format is decided by a coin flip if the teams don't agree in the ensuing rounds.