Specs are as follows, patterns must fall within these guidelines
Prior to Sport Bowling league/tournament competition, the following must be done:
• Each lane shall be stripped prior to oiling of the Sport condition
• The ratio of oil applied to the lane from the centre boards to the outside boards must not exceed 2:1 for all tapes taken.
• The ratio shall be defined as the average amount of oil (in units) between boards 18-18 divided by the average on the outsides (boards R3-R7 & L3-L7).
• The amount of oil measured on the outside boards (average of R/L3-7) at 15 feet must be greater than 10 units, and the amount of oil measured on the centre boards (average of L18 to R18) must not exceed 80 units of oil.
• The maximum amount of oil from boards R8 to R17 and L8 to L17 shall not be greater than 120% of the average of boards L18 to R18.
• The minimum amount of oil from boards R8 to R17 shall not be less than 80% of the average of boards R3 to R7.
• The minimum amount of oil from boards L8 to L17 shall not be less than 80% of the average of boards L3 to L7.
• Tapes will be taken at 15’, 25’, and 2’ before the end of the pattern.
• A backend inspection shall also be performed to verify stripping.
• There is no pattern length minimum or maximum.
• There is no lengthwise ratio requirement.