Complex sentence: As a result of winning the Olympic decathlon, Jenner became a national hero and received the James E. Sullivan Award as the top amateur athlete in the United States and was also named the Associated Press Male Athlete of the Year in 1976.
Split into simpler sentences: As a result of winning the Olympic decathlon, Jenner became a national hero and received the James E. Sullivan Award as the top amateur athlete in the United States. She was also named the Associated Press Male Athlete of the Year in 1976.