Complex sentence: He competed at the 1950 British Empire Games where he won the gold medal in the men's 62 kg grade, at the next British Empire and Commonwealth Games in Vancouver he won the bronze medal in the same event.
Split into simpler sentences: He competed at the 1950 British Empire Games where he won the gold medal in the men's 62 kg grade. At the next British Empire and Commonwealth Games in Vancouver he won the bronze medal in the same event.