Pitch, wickets and creases

Playing surface 

Cricket is played on a grassy field.[22] The Laws of Cricket do not specify the size or shape of the field,[23] but it is often oval. In the centre of the field is a rectangular strip, known as the pitch.[22] The cricket pitch dimensions The pitch is a flat surface 10 feet (3.0 m) wide, with very short grass that tends to be worn away as the game progresses.[24] At either end of the pitch, 22 yards (20 m) apart, are placed wooden targets, known as the wickets. These serve as a target for the bowling (also known as the fielding) side and are defended by the batting side, which seeks to accumulate runs.

Stumps, bails and creases 

Each wicket on the pitch consists of three wooden stumps placed vertically, in line with one another. They are surmounted by two wooden crosspieces called bails; the total height of the wicket including bails is 28.5 inches (720 mm) and the combined width of the three stumps, including small gaps between them is 9 inches (230 mm). Four lines, known as creases, are painted onto the pitch around the wicket areas to define the batsman's "safe territory" and to determine the limit of the bowler's approach. These are called the "popping" (or batting) crease, the bowling crease and two "return" creases. The stumps are placed in line on the bowling creases and so these creases must be 22 yards (20 m) apart. A bowling crease is 8 feet 8 inches (2.64 m) long, with the middle stump placed dead centre. The popping crease has the same length, is parallel to the bowling crease and is 4 feet (1.2 m) in front of the wicket.

The return creases are perpendicular to the other two; they are adjoined to the ends of the popping crease and are drawn through the ends of the bowling crease to a length of at least 8 feet (2.4 m). When bowling the ball, the bowler's back foot in his "delivery stride" must land within the two return creases while at least some part of his front foot must land on or behind the popping crease. If the bowler breaks this rule, the umpire calls "No ball". The importance of the popping crease to the batsman is that it marks the limit of his safe territory. He can be dismissed stumped or run out (see Dismissals below) if the wicket is broken while he is "out of his ground".