Thursday, May 8

STRUCTURE OF CRICKET

Laws 12 to 17 outline the structure of the game.

* Law 12: Innings. Before the game the teams agree whether it is to be over one or two innings,
and whether either or both innings are to be limited by time or by overs. In practice,
these decisions are likely to be laid down by Competition Regulations, rather than
pre-game agreement. In two-innings games, the sides bat alternately unless the follow-on
(law 13) is enforced. An innings is closed once all batsmen are dismissed, no further
batsmen are fit to play, the innings is declared or forfeited by the batting captain, or
any agreed time or over limit is reached. The captain winning the toss of a coin decides
whether to bat or to bowl first.

* Law 13: The follow-on. In a two innings match, if the side batting second scores substantially
fewer runs than the side batting first, the side that batted first can force their opponents
to bat again immediately. The side that enforced the follow-on risks not getting to bat
again and thus the chance of winning. For a game of five or more days, the side batting first
must be at least 200 runs ahead to enforce the follow-on; for a three- or four-day game, 150
runs; for a two-day game, 100 runs; for a one-day game, 75 runs. The length of the game is
determined by the number of scheduled days play left when the game actually begins.

* Law 14: Declaration and forfeiture. The batting captain can declare an innings closed at any time
when the ball is dead. He may also forfeit his innings before it has started.

* Law 15: Intervals. There are intervals between each day's play, a ten-minute interval between innings,
and lunch, tea and drinks intervals. The timing and length of the intervals must be agreed
before the match begins. There are also provisions for moving the intervals and interval
lengths in certain situations, most notably the provision that if nine wickets are down,
the tea interval is delayed to the earlier of the fall of the next wicket and 30 minutes
elapsing.

* Law 16: Start of play; cessation of play. Play after an interval commences with the umpire's call of
"Play", and at the end of a session by "Time". The last hour of a match must contain at least
20 overs, being extended in time so as to include 20 overs if necessary.

* Law 17: Practice on the field. There may be no batting or bowling practice on the pitch except before
the day's play starts and after the day's play has ended. Bowlers may only have trial run-ups
if the umpires are of the view that it would waste no time.

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