The game
The object is to knock down a piece of wood which is supported on one of its sides. The player, from 14.5 metres, must hit this ''calva'' with his ''marro'', a metal cylinder. The player has 25 throws to achieve this, with two practice throws. The ''calva'' is generally made of oak and has the form of an obtuse angle, between 110 and 120 degrees. The lower part, called the ''zapata'', has a length of 23 cm, while the upper part (the ''alzada'') is 22 cm long. The ''marro'' was originally often a rock taken from a creekbed, where it had been worn smooth. Today it is usually an iron cylinder or oval with the name of its owner, weight, length, etc. often inscribed on it. It cannot be greater than 25 cm in length and generally weighs between 2 and 3 kilograms. The field of play is usually about 25 metres in length and about 5 metres in width. The distance of the throw is standardized at 14.5 metres, leaving about 3-5 metres for an approach area and 6-8 metres to stop the throw.External links