Laws of Cricket 1884 Code One Day Matches - as Revised in 1899
Law 1
The side which goes in second shall follow their innings if they have scored 60 runs less than the opposite side.
Law 2
The match, unless played out, shall be decided by the first innings. Prior to the commencement of a match it may be agreed:- that the over consist of 5 or 6 balls.
Note:
A tie is included in the words "Played out."
Reproduction of the Laws of Cricket is by kind permission of Marylebone Cricket Club