Field of play

Most hockey field dimensions were originally fixed using whole numbers of imperial measures. Nevertheless, metric measurements are now the official dimensions as laid down by the International Hockey Federation (FIH) in the "Rules of Hockey". The pitch is a 91.4 m × 55 m (100.0 yd × 60.1 yd) rectangular field. At each end is a goal 2.14 m (7 ft) high and 3.66 m (12 ft) wide, as well as lines across the field 22.90 m (25 yd) from each end-line (generally referred to as the 23-metre lines or the 25-yard lines) and in the center of the field. A spot 0.15 m (6 in) in diameter, called the penalty spot or stroke mark, is placed with its centre 6.40 m (7 yd) from the centre of each goal. The shooting circle is 15 m (16 yd) from the base line.
Traditional grass pitches are far less common in modern hockey with most field hockey being played on synthetic surfaces. Since the 1970s, sand-based pitches were favoured as they dramatically speed up the pace of the game. However, in recent years there has been a massive increase in the number of "water-based" artificial turfs. Water-based synthetic turfs enable the ball to be transferred more quickly than on the original sand-based surfaces and it is this characteristic that has made them the surface of choice for international and national league competitions. Water-based surfaces are also less abrasive than the sand-based variety and hence reduce the level of injury to players when they come into contact with the surface. The FIH are now proposing that new surfaces being laid should be of a hybrid variety which require less watering. This is due to the negative ecological effects of the high water requirements of water-based synthetic fields.