After losing to Harris , he won 10 more races in a row , collecting his second world gold in Rome in August of the same year .
Then he finished third in the final 400 m race of his career at the 1988 Summer Olympics in Seoul .
After losing to Harris , he won 10 more races in a row , collecting his second world gold in Rome in August of the same year , and then he finished third in the final 400 m race of his career at the 1988 Summer Olympics in Seoul .