Complex sentence: The Colts finished the National Football League's 1960 season with a record of 6 wins and 6 losses and finished fourth in the Western Conference, while their two-year reign as NFL Champions came to an end.
Split into simpler sentences: The Colts finished the National Football League's 1960 season with a record of 6 wins and 6 losses and finished fourth in the Western Conference. As a result, their two-year reign as NFL Champions came to an end.