As a senior in 2006–07, he averaged 17 points, 6.5 rebounds and five assists per game to help lead coach Andy Poplin's CHS team to the 3A state hoops crown.

[1] In 2007, Bost enrolled at Hargrave Military Academy in Chatham, Virginia for one prep season.

In 2007–08, he averaged 18.5 points, 5.5 rebounds, 4.7 assists and 3.6 steals per game to help lead Hargrave Military to a perfect 29–0 record and the 2008 National Prep Championship title.

[5][6] After averaging 9.1 points, 3.3 rebounds, 2.2 assists and 1.1 steals per game in 2012–13, he parted ways with the club.

[10] On April 21, 2014, Bost signed with Trotamundos de Carabobo for the 2014 LPB season.

[11] In July 2014, Bost joined the Indiana Pacers for the 2014 NBA Summer League.

[15] On August 7, 2015, Bost signed with Stelmet Zielona Góra of Poland for the 2015–16 season.

[24] On September 26, 2023, Bost signed a 2-months contract with Metropolitans 92 of the LNB Pro A for replacing injured Jordan Theodore.

[26] On June 2, 2024, he signed with Indios de Mayagüez of the Baloncesto Superior Nacional (BSN).