While all three patterns (Red, White and Blue) are “house” shots, they provide a variable range of difficulty. The USBC White pattern is designed to be the medium scoring pattern of the three for a typical USBC member. While the Red typifies the “typical house shot,” the White pattern may be utilized in local or city tournament as it is a step up in challenge level for the average player.
It is interesting to note that the White pattern can actually be the highest scoring of the three patterns among higher caliber players. While the Red pattern often plays “over-under” for scratch bowlers, the White pattern is blended more evenly while still showing a crown of oil from inside to out and gradual taper from the foul line to the end of the oil pattern. Click on image to enlarge.