Simplify the following text for a Grade 12 native English-speaking person.
Original: He retired from competitive judo on June 17 , 1985 after a remarkable career where he won five gold medals in international competitions and marked 203 consecutive victories ( with 7 draws in-between ) up until his retirement .
Simplified: He retired from competitive judo on June 17 , 1985 after a remarkable career where he won five gold medals in international competitions and won 203 in a row without losing ( with 7 draws in-between ) .