NJ Sport Bowling patterns are rated on a 1-5 scale, with 5 being the most difficult.

Note: 6 patterns are now used for our Grinch Classic!

Ratios: 6 (<0.75:1), 5 (<1:1), 4 (1.-1.5:1), 3 (1.5-2:1), 2 (2-2.5:1), 1 (>2.5:1). 

' = feet, mL = milliliters (volume)