In view of the above-mentioned facts, it may come as a surprise that gambling in Japan is only partially legal. Japan Legislation Historical Betting Overview What You Need to Know Odds Format Japan Betting Laws Betting Restrictions Regulatory Body Popular Betting Markets Bonuses Mobile Betting Banking Methods Picking a Betting Site Best 10 Betting Sites FAQĪpart from the population’s active interest in various sports, it is important to note that Japan has hosted several major sporting tournaments over the years, including the 2002 Soccer World Cup and the 2019 Rugby World Cup.