Frontier League
The Frontier League of Professional Baseball enters its 33rd season in 2026 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 2025, and over 75 players from the past three seasons were signed by Major League Baseball organizations. Tryout Camp participants have been signed by MLB organizations in each of the past four seasons. Frontier League teams play 102 games from May through Labor Day weekend, followed by three rounds of playoff games.