Wednesday, April 17, 2013

Defending The Rim

How we can measure defense in the paint with basic stats. Lay-ups-dunks, rebounds, blocks else? These are some stats that can provide an insight about which team defends the rim better. 

Who allows more close range shots and what is these shots success percent? Which team gives more offensive rebounds? Who rejects more shots in a game? The answer of all these question is related with opponents and games paces', right? Pure numbers are not enough for comparison. Giving 10 close range shot attempts  against CSKA should not equal with giving 10 shots against Alba. All teams offensive strategies and strengths aren't same. Oly tried 27 close range shots per game in TOP 16, Maccabi 17. Important thing is here to take your oppennets' numbers down. Allowing 10 buckets can be better than allowing 8 buckets with respect to your opponent. As well as we have to adjust stats with how many plays did opponent in the game. More pace means more shots that means more rebounds more buckets or more chance to blocks. And also stats should be combined to reach one rate. You can't sum up shots and rebounds directly. Thus we took all stats to one common base, same logic with TDR.

Firstly, we adjusted all numbers with plays and found distance between opponents' averages and performances of that opponents' against selected team. For example, Real Madrid allowed 13,05 close range shot per game in Top 16 however opponents of Real made 15,98 shots in the other games(numbers are play adjusted). After done this calculation for all teams and selected stats, we found teams places in between all with normal disturibution. And we multiplied nolmal disturibution value with coefficients to bring them all to point base. After all we summed stats and reached the rates. Here are the results.

click on the picture for bigger view
click on the picture for bigger view