While a junior at the University of South Carolina, Kinsey was an essential player on the Gamecocks basketball team.

As the team made it to the NIT (National Invitation Tournament), they reached the championship game against St. Joseph's University.

Kinsey got the inbounds pass for USC, dribbled up court, and fired a 3-pointer that hit nothing but net with 1.3 seconds left to win the NIT for South Carolina, 60–57.

Undrafted out of college, Kinsey played the 2006–07 NBA season for the Memphis Grizzlies, averaging 7.7 points in 48 games.

After being released by the Grizzlies, Kinsey signed a contract to play in the TBL for the Fenerbahçe Ülker in Turkey.

On August 25, 2009, Kinsey returned to Fenerbahçe Ülker for a second stint, signing a two-year deal.

[6] On December 14, 2012, Kinsey signed with Victoria Libertas Pesaro in Italy's Lega Basket Serie A.

[12] In the Euroleague game against Lokomotiv Kuban on January 31, he scored career-high 32 points, while also adding 5 rebounds and 3 steals.

[15] Nizhny Novgorod ended the competition in the VTB United League after being eliminated by CSKA Moscow with 3–0 in the semifinal series.