In baseball, a double header is two games played on the same day in the same park.
Traditionally the games would be played back-to-back, with only one admission fee charged. At the major league level, to the extent double-headers are played today they are played as "day-night" double-headers, with separate admission charged for each game, or when a game is rained out and has to be made up on the same day as a scheduled game.
- Baseball Glossary WETA.
- Baseball Glossary OF TERMS
- Pitching Glossary
- Batting Glossary
- Hall of Fame National Baseball Hall of Fame and Museum, Inc.
- The Official Site of Major League Baseball
- Minor League Baseball
- BASEBALL HISTORY Major League Baseball Players Alumni Association.