The Frontier League of Professional Baseball enters its 32nd season in 2025 as the largest and longest-running MLB Partner League. The Frontier League consists of 18 teams stretching from the Atlantic Ocean to the Mississippi River. The Frontier League annually moves the most players to MLB organizations of any MLB Partner League, and we have produced multiple MLB All-Stars and World Series players. Eight former Frontier League players saw MLB action in 2024, and over 50 players from the past three seasons were signed by Major League Baseball organizations. Frontier League teams play 96 games from mid-May through Labor Day weekend, followed by two weeks of playoff games.