He is an assistant coach of the Ulsan Hyundai Mobis in the Korean Basketball League (KBL).

[1] At six feet, ten inches tall, and 210 pounds, Macklin was a five-star recruit at the power forward position.

During his two seasons with the Hoyas, he played behind future NBA players Jeff Green and Roy Hibbert.

During his senior season, Macklin led the Gators in field goal completion percentage and blocks, and averaged 11.6 points and 5.4 rebounds per game; the Gators won the Southeastern Conference (SEC) regular season championship and advanced to NCAA Tournament Elite Eight.

[7] On February 14, 2013, he signed with Barangay Ginebra San Miguel as their import for the 2013 Commissioner's Cup.

[15] In March 2018, Macklin signed with the Magnolia Hotshots of the Philippine Basketball Association as their import for the 2018 PBA Commissioner's Cup.

[17] He became an assistant coach for Ulsan Hyundai Mobis Phoebus in the Korean Basketball League (KBL) starting that year.