Monday, 16 December 2013

Warner in Perth

I have written before about how impressed I am with David Warner's running between wickets. I genuinely believe that he is one of the best at judging a run that I've seen.

Accordingly I was surprised to see that he had scored the same number of singles as boundaries in the second innings at Perth. I also heard the commentators describe it as a typical innings from Warner. It made me wonder if it actually was a typical innings.

First of all I looked at how Warner compared to other batsmen.  The method I chose to look at was to compare the boundary percentage (boundaries per delivery) and the activity rate (runs scored per non-boundary delivery). I filtered out any batsman who hadn't faced more than 650 deliveries since 2000, hadn't hit more than 50 fours and hadn't played in the past 2 years. I then put the rest of the batsmen on a single graph.

I divided up the batsmen into 4 categories. Aggressive, Block Bash, Pushers and Defensive. Close to the extremes of each group were players who have been reasonably successful.

In the defensive group are players like Rahul Dravid, Peter Fulton, Tino Mawoyo, Ed Cowan and JP Duminy.
Block Bash contains Angelo Mathews, Shane Watson, Chris Gayle and Yuvraj Singh.
Pushers includes Kane Williamson, Shiv Chanderpaul, Jonathan Trott and Thilan Samaraweera.
Aggressive include Ricky Ponting, Sachin Tendulkar, Darren Sammy and David Warner.

Warner has a higher activity rate than anyone in the list. But he also hits more boundaries than most batsmen.




Warner's activity rate for his career is 0.353 and his boundary rate is 9.3%. His innings in Perth lasted 140 deliveries. We would expect 13 boundaries, perhaps 12 fours and 1 six. Off the other 127 deliveries we would expect him to score 45 runs. Overall we would expect that he would be on about 99, rather than 112, so he scored slightly faster than we would expect, but the big difference was the make up of the innings.

Warner scored 80 runs in boundaries. That's about 40% more than we would normally expect him to get.

I used the same graph as above, to analyse Warner's other innings. I've included every innings where Warner has scored more than 30. I've drawn in lines to show which group the innings would have fit in.
We can see that Warner's innings does fit in with some of his other innings, but really is closer to the Block Bash quadrant than almost any of his other innings.

It was an interesting innings, because of the context and the opponent, but also because of the way that he scored the runs.

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