The sport played with a round bat and a ball on a diamond is baseball. This game involves two teams taking turns batting and fielding, with the objective being to score runs by hitting the ball and running around four bases. The layout of the field resembles a diamond shape, with bases positioned at the points. Baseball is celebrated for its strategic complexity, making it a beloved pastime, particularly in the United States. The sport also has a rich history and cultural significance, with features like the World Series demonstrating its significance beyond just a game.