In baseball, total bases (TB) refer to the number of bases a player gains with hits. It is a weighted sum with values of 1 for a single, 2 for a double, 3 for a triple, and 4 for a home run. Only bases attained from hits count towards this total, and reaching base by other means such as a base on balls or advancing further after the hit does not increase the players total bases. Total bases are used to determine a players slugging percentage, which is total bases divided by at-bats. A player can only add to their total bases tally through a hit.

To calculate total bases, you add up the values for each hit recorded by the player. For example, if a player hits a single, double, and a home run in a game, their total bases for that game would be 7 (1+2+4).

Some additional facts about total bases in baseball include:

• Hank Aaron is the career leader in total bases with 6,856.
• Albert Pujols ranks second all-time among active players in total bases with 6,211 as of the 2022 MLB season.
• The total bases divided by the number of at-bats is the players slugging average.
• Total bases provide a comprehensive view of a players offensive performance, encapsulating all hits and offering a more holistic understanding of a players contribution to the game.