The grounds vary in size. Most grounds on which official matches 
are played measure about 137 metres wide and 150 metres long. 
The wickets are 22 yards (20.12 metres) apart in the centre of the field. 
They stand opposite and parallel to each other. 
The area between the wickets is called the pitch.

Each wicket measures 9 inches (22.9) centimetres wide. 
The stumps of each wicket are close enough together so the 
ball cannot pass between any two of them. 
The tops of the stumps stand 28 inches (71.1 centimetres) above the ground. 
The bails are 43/8 inches (11.1 centimetres long) and rest in 
grooves on the tops of the stumps. The bails do not rise more 
than 1/2 inch (13 millimetres) above the stumps.

White lines made by chalk or lime mark certain boundaries called creases. 
A line called the bowling crease is drawn through the stumps of 
each wicket. It is 8 feet 8 inches (2.64 metres) long,
with the middle stump of the wicket at its centre. 
A line called the popping crease is marked 4 feet (1.22) metres 
in front of the bowling crease. The popping crease extends 
at least 6 feet (1.83 metres) on either side of the centre of the 
wicket but is considered to be unlimited in length. 
Lines called return creases are marked from each end 
of the bowling crease. The return creases extend forward to 
the popping crease and back at least 4 feet (1.22 metres) 
behind the bowling crease. However, the return creases 
are considered to be unlimited in length. The bowler must 
deliver the ball with some part of the front foot behind the popping crease. 
The back foot must be between the return creases

TYPES OF PITCHES

In general there are 6 different types of cricket-pitches:-
 

1. THE GOOD WICKET :
This is good for scoring runs as neither the spin nor seam bowlers are able to make the ball bounce surprisingly.
 
 

2. THE FAIR WICKET:
Allows both spin and seam bowlers to achieve a degree 
of movement, but at even pace and height
 
 

3. THE SPORTING WICKET:
Generally results from a period of drought with dry, 
hard soil under the grass. Fast bowling can be lethal on this wicket.
 
 

4. THE GREEN WICKET:
Is generally created by a moist atmosphere, and is usually 
well-grassed. This wicket allows medium to fast seam 
bowling, sometimes in contradiction to the swing.
 
 

5. THE CRUMBLING WICKET:
Also results from dry weather and lack of grass to bind it. 
Spinners and medium-paced cutters do well under such circumstances.
 
 

6. THE ROUGH WICKET:
Does not give batsman a fair chance as the ball does not bounce truly