 Baseball teams shared grounds with football clubs and the game was run at a professional standard with up to 10,000 spectators per game.One milestone of baseball in the United Kingdom was the 1938 victory of Great Britain over the United States in the 1938 Amateur World Series, considered the first World Cup of Baseball.Today, there are 74 active baseball teams, and 1,500 adult and Junior (under 18) players ranging geographically from London to Liverpool, St Austell to Edinburgh.