Complex sentence: In winning the 100-meter freestyle, a tie with Penny Oleksiak of Canada, Manuel became the first African-American woman to win an individual Olympic gold in swimming and set an Olympic record and an American record.
Split into simpler sentences: In winning the 100-meter freestyle, Manuel became the first African-American woman to win an individual Olympic gold in swimming. Manuel won in a tie with Penny Oleksiak of Canada while seeting an Olympic record and an American Record.