Complex sentence: McGuffin served as Alabama's representative at the Miss America 2016 pageant in Atlantic City, New Jersey, on September 13,2015, finishing as the 4th runner-up to the eventual winner, Betty Cantrell of Georgia.
Split into simpler sentences: McGuffin served as Alabama's representative at the Miss America 2016 pageant in Atlantic City, New Jersey, in September 2015. She was named the fourth runner-up to the eventual winner, Betty Cantrell of Georgia.