Biography(references)Oyama was born in Nasu District in Tochigi Prefecuture, Japan on April 11, 1974 as Toshiyuki Oyama. He started practicing Judo when he was five years old, winning the All Japan Businessmen's Individual Championship, among other titles. He did not limit itself to a single grappling style, and also won the All Japan Sambo Championship and the All Japan Combat Wrestling Championship. Then, he began training MMA and won All Japan Amateur Shooto Championship, making a pro debut in 2001.
Awards & Accolades
K-1 Hero's: 2006 K-1 Hero's Light Heavyweight Grand Prix Semifinalist
ROAD FC: ROAD FC Middleweight Championship (1 Time, first)
Shooto: 7th All Japan Amateur Shooto Championship, Light heavyweight winner (September 10, 2000)
: 28th All Japan Business Groups Judo Individual Championship, Men 81 kg class winner
: 21st All Japan Sambo Championship, Men Senior 82 kg class runner-up (1997)
: 22nd All Japan Sambo Championship, Men Senior 82 kg class winner (1998)
: 24th All Japan Sambo Championship, Men Senior 82 kg class winner (June 28, 1998)
: 25th All Japan Sambo Championship, Men Senior 82 kg class winner (1999)
: 26th All Japan Sambo Championship, Men Senior 82 kg class winner (July 16, 2000)
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