The pairing represents a Major League Baseball (MLB) interleague game, a contest between two teams from different leagues: the Chicago Cubs from the National League and the Arizona Diamondbacks from the National League. These games occur throughout the regular season. For example, a scheduled contest might take place at either Wrigley Field, the Cubs’ home ballpark, or Chase Field, the Diamondbacks’ home.
The significance of these matchups stems from providing fans with an opportunity to witness competition between teams that would not normally play each other during the regular season, with the exception of the World Series. These games contribute to league parity, generate fan interest, and create unique statistical records. Historical context includes the Diamondbacks joining the MLB as an expansion team in 1998, increasing the frequency of these interleague games.