During the 60's to early 70's karate tournaments were known for being more heavy handed than the tag that's played today. American servicemen coming home brought over the martial arts they learned over seas in Korea and Japan to teach and prove their skills. The tournaments had the one hit scoring that you see today but the hits and injuries were much worse. It was called the blood and guts era. During this time people like Chuck Norris (Tang Soo Do, Taekwondo) and Jim Kelly (Goju-ryu, Shotukan) cut their teeth in these style of tournaments before becoming martial arts movie stars.