Helio Gracie vs. Masahiko Kimura - October 23, 1951 (Maracanã Stadium - Rio de Janeiro, Brasil). On October 23, 1951, Helio Gracie faced Masahiko Kimura who outweighed him by nearly 80 lbs. After 13 minutes, Kimura caught Helio in the shoulder lock that, today, bears Kimura's name. Helio wouldn't tap, so Carlos Gracie threw in the towel forfeiting the match to the Japanese giant. His loss to Kimura was consider one of the greatest victories of Helio Gracie's career.