Evaluating batsmen's scores in test cricket

Run accumulation by a batsman in test or first-class cricket is modelled by means of a Simple Geometric Distribution, and batting performance examined in (batting average, batting consistency) space. A statistic for adjusting the batting average for consistency, or what we term the Geometric Coefficient in this context, is proposed as an appropriate adjustment factor to incorporate a measure of a batsman's consistency into his batting average. Two sets of data, one pie-WWII and one current, are examined in this framework.