A new bowler is assigned an ID number and given a starting average based on their highest league average for 30 or more strings in the bowling center where they purchased their Association Membership Card. The bowler is given a theoretical 50 strings at that average. Each time the bowler bowls in a Senior or Classic event the oldest strings are dropped and the new ones added. The new total is divided by 50 to compute the new average.

SANDBAGGING: If a bowler bowls more than 40 pins lower than his average in a 5 string event or 80 pins in a 10 string event the score to compute their average is based on their average multiplied by the number of strings bowled minus 40 in 5 string events or minus 80 in a 10 string event.

As long as a bowler bowls in a current year MSCBA event, their average is carried over year to year. If they do not bowl during that year; their computer number, name and average are kept for a period of three years. If a bowler does not participate in any MSCBA tournament during that three year period, they are then dropped from the computer. If they participate again then they are given a new ID number and starting average like a new bowler. The averages are only changed at the end of each month due to the many events each month and because bowlers can participate in more than one event each month.