On September 26, 1998, Michael Bishop connected with Lockett on a 97-yard touchdown against University of Louisiana at Monroe to set the Big 12 Conference record for longest pass reception. Lockett led the nation in punt return average with 22.8 yards and 3 touchdowns in 22 punt returns in 2000, according to National Collegiate Athletic Association record books, although Big 12 record books claim he finished second in the nation. The average led the Big 12, and it still stands as the Big 12 Conference single-season record. That season, he was a second team All-American selection by the Associated Press. His 58-yard punt return touchdown in the 2000 Big 12 Championship Game tied the score in the third quarter. In 2001, he was an honorable mention All-American selection by CNN Sports Illustrated. Lockett was a 1998 All-Big 12 Conference honorable mention wide receiver, 1999 All-Big 12 Conference second team wide receiver, 2000 All-Big 12 Conference first team punt returner, 2001 All-Big 12 Conference second team kickoff returner. He was a four-time Big 12 Conference Special Teams player of the week: August 26 – September 2, 2000, September 16, 2000, November 18, 2000, and September 20-22 2001. He established the following Kansas State Wildcats football records:
single-game receiving yards by a freshman single-season receiving yards by a freshman,
consecutive 100-yard receiving games — broken in 2007 by Jordy Nelson,
career all-purpose yards — broken in 2004 by Darren Sproles
single-season punt return average
longest play from scrimmage
He led Kansas State in the following statistics:
receptions
receiving yards
all-purpose yards
In track, placed 4th and 5th in the 60 metres at the 1998 and 2000 Big 12 Indoor Track & Field Championships and set the Kansas State record of 6.69 seconds in the 1999 event. In 2001, Terence Newman broke the record when he ran a 6.67, and in 2002 Newman set the current school record of 6.62. Lockett's time of 21.48 seconds in 2000 was second in school history in the 200 metres at the time. Lockett has one of the fastest 40-yard dash times at the NFL Combine since 2000 when times began being recorded electronically with fully automatic time electronic timing.
Professional career
NFL
He was drafted in the 7th round of the 2002 NFL Draft by the Tampa Bay Buccaneers as a compensatory selection. He signed with the 2002 Buccaneers in July of that year. The team released him at the end of training camp. He spent much of the 2002 NFL season on the taxi squad for the San Francisco 49ers, who signed him on October 1, released him on November 19, signed him on November 27, and re-signed him for 2003 the following February. They released him in training camp in 2003.
CFL
In 2004, Lockett signed with the Ottawa Renegades. At some point in the season, he became a member of the 2004 BC Lions that played in the 92nd Grey Cup. During the 2005 CFL season for the BC Lions, he fielded 61 kickoff returns, which was tied for fourth all-time in league history. That season, he led the CFL in return yards and became a Rogers CFL Player Awards nominee. He was released by the Lions during the 2006 CFL season after return blocking rule changes rendered him ineffective.
Personal
Lockett's brother held the Kansas state career receiving record, which was surpassed by his nephew on November 8, 2014. His nephew is also the only Kansas State player to return kickoffs for touchdowns in consecutive games. His parents are John and Beatrice Lockett. He is an accomplished rapper.