The Rox compete in the Frontier League (FL) as a member of the North Division in the Atlantic Conference.

[1]The Frontier League announced late in the 2023 season that it would be placing a team in Brockton for the 2024 Frontier League season to replace the Empire State Greys, a traveling team founded when the Southern Illinois Miners were disbanded after their owners retired.

[3] However, reactions from fans and local business leaders in the area were lukewarm at best; as such, the owners of the team reconsidered.

[4] On January 29, 2025, it was announced that the Knockouts franchise had been acquired by former Greenville Drive and Salem Red Sox owner, Bill Janetscheck.

[5] The previously noted Brockton Rox, which originated as a professional team, had competed in the Futures Collegiate Baseball League from 2012 through 2024, the final season of which they shared Campanelli Stadium with the Knockouts.