 He helped Dallas win five Eastern Conference titles, two NFC titles, played in two Super Bowls, and was instrumental in Dallas' first ever Super Bowl victory in 1972, making Hayes the only person to win both an Olympic gold medal and a Super Bowl ring.Later in his career, as defenses improved playing zone and the bump and run was refined, Hayes' value as an erstwhile decoy rather than a deep threat diminished.Hayes was the second player (after Franklin Clarke) in the history of the Dallas Cowboys franchise to surpass 1,000 yards (ground or air) in a single season, and he did that in his rookie year by finishing with 1,003 yards.