Mark Richardson (cricketer) colours. He retired from all forms of cricket in December 2004, saying he could not sustain the intensity needed to compete at international level. He noted that he finished with "a Test bowling average that is better than Sir Richard Hadlee's (22.29), and a 50-50 record in the end-of-series running race." He scored 9,994 first-class runs during his career, remarked that the tally was "only different from Donald Bradman's Test batting average by a decimal point" (Bradman finished his career with an average of 99.94). Richardson has been a cricket commentator for SKY Sports since 2006. He co-hosted Prime show
Batting average (cricket) every single innings, then this statistic gives exactly the average number of runs they score per innings. However, for a batter with innings which finished not out, the true average number of runs they score per innings is unknown as it is not known how many runs they would have scored if they could have completed all their not out innings. This statistic is an estimate of the average number of runs they score per innings. If their scores have a geometric distribution, then this statistic is the maximum likelihood estimate of their true unknown average. Batting averages can be