Unless otherwise noted, the specifications discussed in this section refer to those described within the Official Baseball Rules, under which Major League Baseball is played.
The starting point for … 展开

The outfield is made from thick grass or artificial turf. It is where the outfielders play. The positions to play in the outfield are left, center, and right field (named in relation to the batter's position; thus left field is beyond third base and right field is beyond first base). … 展开

The basic layout of the field has been little changed since the Knickerbocker Rules of the 1840s. Those rules specified the distance from home to second as 42 "paces". The dictionary … 展开

A baseball infield is the square area within the four 90-foot baselines (60-foot baselines in Little League Baseball for youths 12 years old and under). The four bases are integral parts of … 展开

The grass line, where the dirt of the infield ends and the grass of the outfield begins, has no special significance to the rules of the game (except in Double-A Minor League Baseball where … 展开

Bullpen
The bullpen (sometimes referred to as simply "the 'pen") is the area where pitchers warm up before entering a game. Depending on the … 展开

See: Turf management, Sports turf, Groundskeeping#Groundskeeping equipment, Equipment manager, and Sand-based athletic fields 展开