Things You'll Need
Instructions
Bowl several games at the beginning of the season -- most leagues require three games. Add the scores of those games together.
Divide the total by the number of games you played.
Subtract your average from 200, which is the base in most leagues. Some leagues will have you take a percentage of the result as your handicap. For example, your league might take 90 percent of the difference between your average and 200. If your average is 150, you would subtract 150 from 200, then multiply the result of 50 by .9 to get your handicap. In this case, the handicap is 45.