Once considered the world's fastest man by virtue of his multiple world records in the 60-yard, 100-yard, 220-yard, and Olympic 100-meter dashes, Hayes is the first man to win both an Olympic gold medal and a Super Bowl ring.
Hayes was also the first person to break six seconds in the 60 yard dash with his indoor world record of 5.9 seconds. While a student at Florida A&M in 1962, Hayes tied the world record of 9.2 seconds in the 100 yard dash, which had been set by Frank Budd of Villanova the previous year. The next year he broke the record with a time of 9.1, a record that would not be broken for eleven years (until Ivory Crockett ran a 9.0 in 1974). That same year, Hayes set the world best for 200 meters (20.5 seconds, although the time was never ratified) and ran the 220 yard dash in a time of 20.6 seconds (while running into an eight mph wind).
He was the AAU 100 yard dash champion three years running, from 1962–1964, and in 1964 was the NCAA champion in the 200 meter dash. He would miss part of his senior year in college because of his 1964 Olympic bid for U.S. Gold.
At the 1964 Summer Olympics, in Tokyo, Hayes had his finest hour as a sprinter. First, he won the 100m and tied the then world record in the 100 m with a time of 10.06 seconds, even though he was running in lane 1 which had, the day before, been used for the 20 km racewalk and this badly chewed up the cinder track. He also was running in borrowed spikes because one of his shoes had been kicked under the bed when he was playing with some friends and he didn't realize until he got there. This was followed by a second gold medal in the 4×100 meter relay, which also produced a new World Record (39.06 seconds).
His come-from-behind win for the US team in the relay was one of the most memorable Olympic moments. Hand-timed between 8.5 and 8.9 seconds, his relay leg is one of the fastest in history.Jocelyn Delecour, France's anchor leg runner, famously said to Paul Drayton before the relay final that, "You can't win, all you have is Bob Hayes." Drayton was able to reply afterwards, "That's all we need." The race was also Hayes' last as a track and field athlete, as he permanently switched to football after it, aged only 21.
In some of the first meets to be timed with experimental fully automatic timing, Hayes was the first man to break ten seconds for the 100 meters, albeit with a 5.3 m/s wind assistance in the semi-finals of the 1964 Olympics. His time was recorded at 9.91 seconds. Jim Hines officially broke 10 seconds at the high altitude of Mexico City, Mexico in 1968 (and on a synthetic track) with a wind legal 9.95 which stood as the world record for almost 15 years. The next to surpass Hayes at a low altitude Olympics was Carl Lewis in 1984 when he won in 9.99, some 20 years later (though Hasely Crawford equaled the time in 1976).
Until the Tokyo Olympics world records were measured by officials with stopwatches, measured to the nearest tenth of a second. Although fully automatic timing was used in Tokyo, the times were given the appearance of manual timing. This was done by subtracting 0.05 seconds from the automatic time and rounding to the nearest tenth of a second, making Hayes' time of 10.06 seconds convert to 10.0 seconds, despite the fact that the officials with stopwatches had measured Hayes' time to be 9.9 seconds, and the average difference between manual and automatic times was typically 0.15 to 0.20 seconds. This unique method of determining the official time therefore denied Hayes the record of being the first to officially record 9.9 seconds for the 100 meters. The first official times of 9.9 seconds were recorded at the "Night of Speed" in 1968.
The Dallas Cowboys drafted Hayes in the seventh round of the 1964 NFL Draft with a future draft pick, which allowed the team to draft him before his college eligibility was over, taking a chance that the Olympic sprinter with unrefined football skills could excel as a wide receiver. He was also drafted by the Denver Broncos in the 14th round of the 1964 AFL Draft, with a future selection. The bet paid off, due to his amazing feats in cleats. Hayes has been credited by many with forcing the NFL to develop a zone defense and the bump and run to attempt to contain him.
Hayes' first two seasons were most successful, during which he led the NFL both times in receiving touchdowns with 12 and 13 touchdowns, respectively. In 1966 Hayes caught six passes for 195 yards against the New York Giants at the Cotton Bowl. Later, in the Dallas Cowboys-Washington Redskins match-up, Hayes caught nine passes for 246 yards (a franchise record until Miles Austin broke it with a 250-yard performance on October 11, 2009, against the Kansas City Chiefs). Hayes' speed forced other teams to go to a zone since no single player could keep up with him. Spreading the defense out in hopes of containing Hayes allowed the Cowboys' talented running game to flourish, rushers Don Perkins, Calvin Hill, Walt Garrison and Duane Thomas taking advantage of the diminished coverage of the line of scrimmage. Hayes is also infamous for two events, both involving the NFL championship games in 1966 and 1967, both against the Packers. In the 1966 game, on the last meaningful play of the game, Hayes missed an assignment of blocking linebacker Dave Robinson, which resulted in Don Meredith nearly being sacked by Robinson and as a result throwing a desperation pass into the end zone that was intercepted by Tom Brown. In the 1967 NFL championship, the "Ice Bowl" played on New Year's Eve, 1967, Hayes was known to give away the plays as pass or run because on running plays he kept his hands inside his pants to keep them warm and the Green Bay defense knew they didn't need to cover him.
In addition to receiving, Hayes returned punts for the Cowboys and was the NFL's leading punt returner in 1968 with a 20.8 yards per return average and two touchdowns, including a 90 yarder against the Pittsburgh Steelers. He was named to the Pro Bowl three times and First-team All-Pro twice and Second-team All-Pro twice. 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 played one season for the San Francisco 49ers before retiring. Also, by then, there were many players faster than Hayes, such as the Raiders' speedster Cliff Branch.
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. Also during his rookie year, he led the team with 46 receptions and set franchise records for total touchdowns (13) and total receiving touchdowns (12). He finished his 11-year career with 371 receptions for 7,414 yards and 71 touchdowns, giving him an impressive 20 yards per catch average (both career touchdowns and yards per catch average remain franchise records.) He also rushed for 68 yards, gained 581 yards on 23 kickoff returns, and returned 104 punts for 1,158 yards and three touchdowns.
His 7,295 receiving yards are the fourth-most in Dallas Cowboys history. To this day, Hayes holds ten regular-season receiving records, four punt return records and twenty-two overall franchise marks, making him one of the greatest receivers to ever play for the Cowboys.
Hayes was close to being inducted into the Pro Football Hall of Fame in 2004, but was denied the opportunity in the final round of decision making. The decision was marred by controversy, with many claiming that the Hall of Fame Senior Selection Committee had a bias against members of the Dallas Cowboys and other NFL teams. Others believe Hayes' legal and drug use issues marred his chances. Shortly after the announcement of the new 2004 Hall of Fame members, long-time Sports Illustrated writer Paul Zimmerman resigned from the Selection Committee in protest of the decision to leave Hayes out of the Hall. Zimmerman is now back in as one of the Hall of Fame voters.
On August 27, 2008, Hayes was named as one of two senior candidates for the 2009 Hall of Fame election. On Saturday, January 31, 2009, he was selected as a member of the Pro Football Hall of Fame's Class of 2009.
The next day Lucille Hester released a letter she claimed he had drafted three years before he died, on October 29, 1999, in case he did not live to see his induction. Its full text read:
You know I am not sure I am going to be around if I get into the Pro Football Hall of Fame so you must read this for me, I am not sure, I guess I am feeling sorry for myself at this time but you must remember everything I want you to do and say. Mother said you would do what I want because you always did. So read this for me.
I would like to thank everyone who supported me to get into the NFL Hall of Fame, the Dallas Cowboys organization, all of my team mates and everyone who played for the Cowboys, (thank the San Francisco 49rs [sic] too). Thank the fans all around the country and the world, thank the committee who voted for me and also the ones who may did not vote for me, thank Mother and my family, thank Roger Stauback [sic] and tell all my teammates I love them dearly.
Thank the Pro Football Hall of Fame, all the NFL teams and players, Florida A&M University, thank everyone who went to Mathew [sic] Gilbert High School, thank everyone in Jacksonville and Florida and everyone especially on the East Side of Jacksonville. Thank everyone in the City of Dallas and in Texas and just thank everyone in the whole world.
I love you all.
Delivered by Hester in front of hundreds and a national cable television audience, the moment was described as "... one of the most compelling and touching scenes the Hall of Fame has seen." Shortly after, it was discovered that the supposedly signed letter was printed in the Calibri font, which didn't exist until five years after Hayes' death. Some family members are disputing Lucille Hester's claim to be related to Bob and are taking steps to ensure she is not part of the Hall of Fame ceremony. On August 8, 2009, Bob Hayes was inducted into the Pro Football Hall of Fame. Roger Staubach, Bob's Dallas Cowboy teammate, along with Bob's son Bob Hayes Jr, unveiled the bust, which was sculpted by Scott Myers. On hand were six members of Bob's Gilbert High School championship team.