The Final Four: Updated South Dakota HS Football Brackets

We've whittled our way down to just 4 teams remaining in each class of the South Dakota High School football playoffs.

In 11AAA on Thursday Night, there was one seed-upset, as 5th-seeded Harrisburg picked up an impressive 17-3 road win over 4-seed O'Gorman.

In 11A, undefeated Sioux Falls Christian shut out Rapid City Christian to punch their ticket to the State Semifinals.

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Here's a look at the latest brackets by class:

Class 11AAA

SDHSAA - GoBound SD

Class 11AA

SDHSAA - GoBound SD

Class 11A

SDHSAA - GoBound SD

Class 11B

SDHSAA - GoBound SD

Class 9AA

SDHSAA - GoBound SD

Class 9A

SDHSAA - GoBound SD

Class 9B

SDHSAA - GoBound SD

All Nations 9A

SDHSAA - GoBound SD

All Nations 9B

SDHSAA - GoBound SD

South Dakota may have a small population, but our state's contributions to sports have been pretty big.

People born in the 605 have gone on to be in the NFL, Major League Baseball, the NBA, WWE, WNBA, and in the Olympics.

Meet seven of the most famous:

Gallery Credit: Bert Remien