"As a competitor or club owner, what do you think that most important stats should be for me?"
Never one to let any work go to waste, I thought I would post my answer here as well
As club owner these are some of the statistics I think are important:
- Number of students
- Number of PAYING students
- Number of families
- Age of students - average and age distribution
- Length of time students have been members of your club
- Average number of practices a student attends per month
- Average attendance by day of the week
- Average attendance by month
- How students heard about your club - ad, word of mouth, demonstration
(Thanks to Jerry Hays, USJF Archivist, for the photo above from the U.S. Olympic Trials )
As competitor, or someone analyzing a competitor's performance, I think these are important
- Number of repetitions of specific techniques each practice
- The trend in the number of repetitions of each technique you do each week and in a given time, e.g. in one minute
- Your average number of practices attended each week
- Average number of minutes you spent in standing randori and in matwork
- Number of tournaments you fought in each month
- Number of matches in tournaments you fought each month
- Number of matches in tournaments you won against people your level or higher - I'd define your level as around your age and rank - so if you're 50 and a 3rd degree black belt, I wouldn't consider a 25-year-old 2nd degree black belt your level.
- Percentage of matches you won against people your level or higher
- Number of different techniques you used to win
- Percentage of times you lost by a throw, matwork or penalty


