Jabari Michael made an immediate impact as a freshman for sprint powerhouse Oxon Hill in 2013. By his sophomore outdoor season, he had clocked times of 10.75 in the 100 and 21.99 in the 200. He finished third in the 100 at the outdoor state championships as only a sophomore in 2014. He continued to have success in both the 100 and 200 in his junior season, but it wasn't until his senior season that he emerged as one of the truly elite sprinters in the state.
Oxon Hill moved to the 3A classification for his senior season, but it may not have mattered for the Oxon Hill boys, who featured one of the best all-around track teams in the state. He won his first state championship in the 300 with a personal best time of 35.36. He also ran a leg on the victorious 4x200 relay at the indoor state championships; overall, he scored in four events, helping to lead the Oxon Hill boys to a state title in dominant fashion. It was more of the same for Michael and the Oxon Hill boys at the outdoor state championships: Michael went four for four in terms of state titles in the 100, 200, 4x100 and 4x400, and once again the Oxon Hill boys won handily. Michael also competed at New Balance Indoor Nationals and New Balance Outdoor Nationals where they dropped a MD #1 time in the SMR.