Is John Morrison’s Sports Betting Champ a scam? Does Sports Betting Champ really deliver a crazily high winning percentage of 97% in NBA and MLB sports games? Well as a customer who have been following John Morrison’s sports betting champ for almost 2 years, I personally haven’t actually been recorded a high winning success of 97% but a little lower which is 94% in the NBA seasonal games and 93% in the MLB baseball games.