The South Dakota high school baseball postseason is officially here, and the action kicks off this weekend with the 2026 Super Regional tournaments. As the state tournament field begins to narrow, teams across Class A and Class B are gearing up for high-stakes, do-or-die baseball that will set the stage for the championships.

Class A Super Regionals lead off the postseason, starting Friday, May 15, and running through Saturday, May 16. These are best-of-three series played at the higher-seeded team's home field—a classic baseball setup that rewards regular-season success with a home-field advantage. The winners advance to the state quarterfinals, semifinals, and final, all held at Ronken Field on the campus of Augustana University on Friday, May 22, and Saturday, May 23. It's a quick turnaround for teams hoping to make a deep run.

Class B Super Regionals follow a slightly different format, similar to what fans see in basketball and volleyball regionals. Instead of a best-of-three, these are single-elimination tournaments where two teams advance from each Super Regional site. Those games are scheduled for Monday, May 18, and Tuesday, May 19. The Class B state tournament then takes center stage at Bob Shelden Field in Brookings on Monday, May 25, and Tuesday, May 26—a perfect Memorial Day weekend baseball showdown.

As of now, the Class A brackets have been released, giving fans and players a clear path to the title. Class B brackets will follow once games conclude on Friday, May 15. Whether you're a player, coach, or fan packing the bleachers, this is the time of year when every pitch, every hit, and every defensive play can make or break a season. Get your gear ready, South Dakota—postseason baseball is here.