Re: Pakistan vs Srilanka - 5th ODI, 2012
How does it not increase your average?
Had Dhoni batted up the order his whole career he would have 20-25 NOs at most I guess (but he would have also scored more runs) and his overall batting average would have dropped (to around mid-forties, still very good in ODIs)
GoldenAsif: I did try to explain how average in long run do not increase if a person stays not-out but then here is good example, so I am putting it down.
Sangakara average was 56 runs per inning (at the time his inning in match against Pakistan finished at 199*).
Suppose there were partners left and Sangakara had chance to complete his innings, then:
No one can say what would have happened to his score, but we know that Sangakara average was 56 runs per inning at time he was 199*.
Though being well settled in batting, he could have made 100 runs or more in his remaining unfinished inning before getting out, but then, he could have got out without adding a single run in his total of 199*.
So, assuming that he would have made runs at least equal to his average, his average stays same at 56 what it was at the time he scored 199*. His not out figure would increase by 1. Total innings Sangakara played also increases by 1.
Anyhow, total completed innings he played stays same. To get his average his total runs is divided by total completed innings.
Thus, one cannot say that because he stayed not out his average improved, nor one can say that since he did not completed his inning (stayed not-out) his average decreased.
Note: Total innings of a batsman increases if a batsman gets to crease and do not even face a single ball, regardless of his average is above 50 (like Sangakara, Tandulkar, etc) or 5 (like Junaid Khan, Pradeep Fernando, etc). On the other hand, total completed innings do not increase until a batsman gets out.