[5][6][7] Blakeney initially gave a verbal commitment to the University of Louisville, but then he changed his mind about 10 days later and decommitted.

Behind Simmons and Keith Hornsby, Blakeney was LSU's third-leading scorer in 2015–16, averaging 12.6 points a contest,[8] hitting a team-best 52 three-point shots on the season.

[1] The 2016–17 season saw him emerge as LSU's leading scorer, pouring in 17.2 points per contest, while corralling 4.8 rebounds a game and handing out 1.7 assists per outing.

[13] He won the NBA G League Rookie of the Year Award for his time with the Windy City Bulls, with whom he averaged 32.0 points, 6.7 rebounds, and 3.9 assists per game, while shooting 86.2% from the free throw line3.

[18] In the 2019–2020 season, Blakeney played in China with the Jiangsu Dragons of the Chinese Basketball Association (CBA).

[22] In the 2022–23 season, Blakeney played in China with the Jiangsu Dragons of the Chinese Basketball Association (CBA).

[24] He averaged 30.5 points (2nd in the league), 7.1 rebounds, and 4.3 assists per game, while shooting 49.7% from the field, 41.2% from three-point range, and 85.4% from the free throw line.

[22] On October 21, 2024, Blakeney signed with the Hapoel Tel Aviv of the Israeli Basketball Premier League and EuroCup.