<p>The Judo World Ranking List has been used to assess its predictive power regarding athletic performance. The aim of this study was to check if the ranking difference among athletes in the individual rankings could be used as a predictor for the outcome of mixed teams judo competition. We sought to verify the association between the variable “rank difference” and the probability of the higher-ranked athlete winning against that lower-ranked. This heterogeneity between athletes is a major factor in increasing or decreasing the team’s chances of winning. The higher ranked athlete’s defeat seems to have a significant negative effect on his/her teammates in subsequent bouts. These findings imply that future studies on mixed teams judo competitions should consider individual ranking differences among athletes as a predictor of performance.</p>

The development and diffusion of jūdō in Brazil is attributed to a small group of Japanese immigrants in the city of São Paulo. This study seeks to present the importance of Shigeichi Yoshima (Yoshima) and his role as an immigrant in the spread of jūdō. The results demonstrate the importance of Japanese immigrants in the interior of the state of São Paulo and their links with local teachers. The proximity between Yoshima and Oda needs to be verified by further studies.