Abstract
This study focuses on the actual situation and utilization of the score sheet devised by Shiro
Yoshii and clarifies the analysis of the basketball game structure derived from it. The study also
explains the transition of the Japanese score sheet and the game analysis using the sheet, from the
Taisho era to the 1960s.
The study covers the following issues. Chapter 1 clarifies the background of the score sheet before
the war and the actual records at that time. In addition, we explain the trend of game analysis that
tries to capture basketball quantitatively using a score sheet. Chapter 2 shows how Yoshii created
the score sheet. Additionally, we examine the actual score sheet created by Yoshii during the match
and the evaluation table posted after the match. In Chapter 3, we concentrate on the game analysis
Yoshii performed based on the score sheet information. Moreover, we focus on game analysis based
on the “number of successful goals” related to the outcome of the game. Yoshii clarified the use of
this analysis in his game strategy.
The results obtained from this study are as follows. In 1934, basketball game records and analysis
became active when the “Competition Record List” was published by the Japan Basketball Association.
Particularly in 1938, the advocacy of attack rate and Defense rate by Tatsuo Hata promoted
game analysis in Japanese basketball. However, at that time, no records could be analyzed by the
formula proposed by Hata. However, at that time, not only was there not enough records to analyze
the formula proposed by Hata, but it can be said that there was a shortage of information to consider
the game in the records at that time.
The score sheet devised by Yoshii solved this problem. By recording the whole game, one would
not only know the score and fouls but also all the details of the game. In addition, from this record,
an evaluation table is created that objectively overviews the results. It can extract and examine the
cause of victory or defeat of the game from the characteristics of basketball where “the number of
shots” determines the victory or defeat. It had a significant influence on team tactics. Nowadays,
while playing a match, data are collected from both teams and a strategy is developed. It can be said
that the score sheet devised by Yoshii is a pioneering effort for basketball competition based on the
day’s data, analyzing the cause of victory and defeat of a game.
Examination of the cause of victory or defeat derived from game analysis using Yoshii’s score
sheet can find certain common issues even in the present time when proposals referring to the structure
of basketball and revision of rules are frequent.
https://ror.org/00kzych23 
